#help-28 | Mathematics | Page 11

fast peak Sep 28, 2022, 3:45 PM

#

yeah the question is badly written

#

lets assume that $x=(x_1, x_2, \ldots, x_d)$ and $0<m\leq n\leq d$

glossy valveBOT Sep 28, 2022, 3:46 PM

#

Denascite

visual topaz Sep 28, 2022, 3:47 PM

#

alright

#

does that get us anywhere?

fast peak Sep 28, 2022, 3:48 PM

#

well now we can start

visual topaz Sep 28, 2022, 3:48 PM

#

hmm lets say we plug those in

#

by saying that m > 0 , n>0 basicly always yields in positive right/

#

no matter what x1 or x2 are

#

plus we are taking absolute value of the elements

fast peak Sep 28, 2022, 3:50 PM

#

ok. so the first axiom is satisfied

#

what about the next

visual topaz Sep 28, 2022, 3:50 PM

#

scalar multiplication

#

this one might be tricky , but same logic i guess

#

alright ill try to work something out, thanks for the help

#

.close

full forumBOT Sep 28, 2022, 3:52 PM

#

Channel closed

Closed by @visual topaz

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

solemn ice Sep 28, 2022, 4:07 PM

#

How do I tell which way the inequality sign goes

full forumBOT Sep 28, 2022, 4:07 PM

#

solemn ice How do I tell which way the inequality sign goes

wide sundial Sep 28, 2022, 4:09 PM

#

What’s the question

torn jolt Sep 28, 2022, 4:10 PM

#

why square function is equal to linear

solemn ice Sep 28, 2022, 4:10 PM

#

Question d

wide sundial Sep 28, 2022, 4:10 PM

#

,rotate

glossy valveBOT Sep 28, 2022, 4:10 PM

#

wide sundial Sep 28, 2022, 4:11 PM

#

solemn ice How do I tell which way the inequality sign goes

Where are the points of intersection

#

You should also lay out what answers which question

#

For example, have i) for the graph

#

Then ii) shows the intersection points if any

#

Then iii) solves the inequality

solemn ice Sep 28, 2022, 4:13 PM

#

How do I find points of intersection is it simultaneous equations

wide sundial Sep 28, 2022, 4:13 PM

#

Yep

#

Points of intersection is where the x and y values of both equations are the same

#

Which is why simultaneous equations work

solemn ice Sep 28, 2022, 4:17 PM

#

?

#

That correct

wide sundial Sep 28, 2022, 4:18 PM

#

What

#

The 2 equations equal each other

#

Your 2 equations are:
y = 3 - x²
y = 2x - 12

full forumBOT Sep 28, 2022, 4:32 PM

#

@solemn ice Has your question been resolved?

solemn ice Sep 28, 2022, 4:40 PM

#

How do I solve that simulatineously

wide sundial Sep 28, 2022, 5:07 PM

#

Equate the y’s

#

So 3 - x² = 2x - 12

full forumBOT Sep 28, 2022, 5:18 PM

#

@solemn ice Has your question been resolved?

full forumBOT Sep 28, 2022, 5:48 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

#

edgy cypress Sep 28, 2022, 5:49 PM

#

<@&268886789983436800>

full forumBOT Sep 28, 2022, 5:50 PM

#

Channel closed

Closed due to the original message being deleted

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

primal mica Sep 28, 2022, 6:00 PM

#

Hello, I would like to ask for help in mathematical analysis, I'm struggling with integration

full forumBOT Sep 28, 2022, 6:00 PM

#

primal mica Hello, I would like to ask for help in mathematical analysis, I'm struggling wit...

pine wasp Sep 28, 2022, 6:01 PM

#

primal mica Hello, I would like to ask for help in mathematical analysis, I'm struggling wit...

alr

#

good to know

#

do you have a question?

primal mica Sep 28, 2022, 6:01 PM

#

#

this is my homework, i already solved 11-14

pine wasp Sep 28, 2022, 6:02 PM

#

which tequniques have you learnt

primal mica Sep 28, 2022, 6:02 PM

#

currently we are supposed to use substitution

pine wasp Sep 28, 2022, 6:02 PM

#

which question do you need help in?

primal mica Sep 28, 2022, 6:02 PM

#

i would like to solve 15

pine wasp Sep 28, 2022, 6:02 PM

#

integrate it?

primal mica Sep 28, 2022, 6:03 PM

#

yes

#

"integrate the following functions"

#

but i didnt send the text, because its in my first language

pine wasp Sep 28, 2022, 6:04 PM

#

thats ok i speak all languages you can think of

primal mica Sep 28, 2022, 6:04 PM

#

haha

#

hungarian?

pine wasp Sep 28, 2022, 6:05 PM

#

all languages apart from that

primal mica Sep 28, 2022, 6:05 PM

#

:))

pine wasp Sep 28, 2022, 6:05 PM

#

you sure its to inegrate and not differenciate it?

primal mica Sep 28, 2022, 6:05 PM

#

yes, 100% sure

pine wasp Sep 28, 2022, 6:05 PM

#

is this calulator or non calc?

primal mica Sep 28, 2022, 6:06 PM

#

im not sure what that means

#

im confused because the previous problems were a lot easier to integrate, this one i cant think of a way to do it

cedar heart Sep 28, 2022, 6:07 PM

#

primal mica this is my homework, i already solved 11-14

What was the answer to question 11?

pine wasp Sep 28, 2022, 6:07 PM

#

yes this one is a bit digusting

cedar heart Sep 28, 2022, 6:07 PM

#

Cause this one is disgusting

primal mica Sep 28, 2022, 6:09 PM

#

idk how to type the syntax

cedar heart Sep 28, 2022, 6:09 PM

#

Is it disgusting

primal mica Sep 28, 2022, 6:09 PM

#

it has a 5th root

#

and stuff

cedar heart Sep 28, 2022, 6:09 PM

#

Ah I see

#

So yes

pine wasp Sep 28, 2022, 6:09 PM

#

$\sqrt[5]{x}$

glossy valveBOT Sep 28, 2022, 6:09 PM

#

mchw

pine wasp Sep 28, 2022, 6:09 PM

#

thats the syntax

#

inline math goes in $ and functions have a \ before them

primal mica Sep 28, 2022, 6:10 PM

#

you know what, im already tired as fck

#

im gonna ask the teacher tomorrow

#

if its a mistake in the book or something

pine wasp Sep 28, 2022, 6:10 PM

#

maybe

primal mica Sep 28, 2022, 6:10 PM

#

i just thought i might be overlooking something

pine wasp Sep 28, 2022, 6:10 PM

#

the answer i got was

primal mica Sep 28, 2022, 6:10 PM

#

thats why i came here

primal mica Sep 28, 2022, 6:11 PM

#

pine wasp the answer i got was

ohh lets see

pine wasp Sep 28, 2022, 6:11 PM

#

primal mica Sep 28, 2022, 6:11 PM

#

whaaaaaaaaaa

pine wasp Sep 28, 2022, 6:11 PM

#

well this is what an online calculator got...

#

its a bit ugly

#

however it would be fun to differenciate

primal mica Sep 28, 2022, 6:11 PM

#

i just wanna pass math

#

😰

pine wasp Sep 28, 2022, 6:11 PM

#

oh you will

#

if you enjoy calculus then you will

primal mica Sep 28, 2022, 6:12 PM

#

im trying to

#

but i mean 🤠

pine wasp Sep 28, 2022, 6:12 PM

#

watch 3blue one browns series on it

#

it gives a good intuition

cedar heart Sep 28, 2022, 6:13 PM

#

pine wasp it gives a good intuition

True

primal mica Sep 28, 2022, 6:13 PM

#

alright, thank you

full forumBOT Sep 28, 2022, 6:28 PM

#

@primal mica Has your question been resolved?

full forumBOT Sep 28, 2022, 6:43 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

obtuse hatch Sep 28, 2022, 6:46 PM

#

how many anagrams we can compose from the word "TIZI OUZOU" such That two similar letters are not adjacent to each other?

full forumBOT Sep 28, 2022, 6:46 PM

#

obtuse hatch how many anagrams we can compose from the word "TIZI OUZOU" such That two simila...

obtuse hatch Sep 28, 2022, 6:46 PM

#

@zenith kernel

zenith kernel Sep 28, 2022, 6:47 PM

#

Which two letters?

obtuse hatch Sep 28, 2022, 6:49 PM

#

any two similar letters

zenith kernel Sep 28, 2022, 6:52 PM

#

Inclusion-exclusion principle

#

(4)(8C1)(7!/2^3)-(4)(3)(7C2)(5!/2^2)+(4)(3)(2)(6C3)(3!/2)-(4!)(5C4)

#

Oh not this directly

#

9!/2^4 minus what I typed

obtuse hatch Sep 28, 2022, 6:57 PM

#

zenith kernel (4)(8C1)(7!/2^3)-(4)(3)(7C2)(5!/2^2)+(4)(3)(2)(6C3)(3!/2)-(4!)(5C4)

thank you

zenith kernel Sep 28, 2022, 6:57 PM

#

Np

obtuse hatch Sep 28, 2022, 6:57 PM

#

.close

full forumBOT Sep 28, 2022, 6:57 PM

#

Channel closed

Closed by @obtuse hatch

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

native briar Sep 28, 2022, 7:06 PM

#

The questions is just about using limit laws. Should the final answer not be 8, not 7?

full forumBOT Sep 28, 2022, 7:06 PM

#

native briar The questions is just about using limit laws. Should the final answer not be 8, ...

native briar Sep 28, 2022, 7:07 PM

#

Want to make sure I'm not missing something here.

rose blaze Sep 28, 2022, 7:07 PM

#

What is f(x) and g(x)?

dim wolf Sep 28, 2022, 7:07 PM

#

^

full marsh Sep 28, 2022, 7:09 PM

#

Depends on what f(x) and g(x) approach

native briar Sep 28, 2022, 7:10 PM

#

f(x) = 4
g(x) = 9

I see using these numbers how you would get the answer in the book. I thought that when you had lim as x-->a that you set the value of f(x) to a. This is evidently false.

full marsh Sep 28, 2022, 7:10 PM

#

4 + 1/3 * 9 = 7

native briar Sep 28, 2022, 7:10 PM

#

lim x->a C = C

full marsh Sep 28, 2022, 7:11 PM

#

native briar f(x) = 4 g(x) = 9 I see using these numbers how you would get the answer in the...

You plug in a into the function (only applies when the function is continuous at a, but ignore that)

#

They already tell you f(x) approaches 4, and g(x) approaches 9. In other words:

#

$\lim_{x \to 6} f(x) = 4$

glossy valveBOT Sep 28, 2022, 7:11 PM

#

RedstonePlayz09

full marsh Sep 28, 2022, 7:11 PM

#

$\lim_{x \to 6} g(x) = 9$

glossy valveBOT Sep 28, 2022, 7:11 PM

#

RedstonePlayz09

full marsh Sep 28, 2022, 7:12 PM

#

You might want to revise what limit means.

#

Having an intuitive understanding of it might help

native briar Sep 28, 2022, 7:13 PM

#

So if I had something like $\lim_{x \to 6} x = ?$ then I would be able to set the ? value to 6?

glossy valveBOT Sep 28, 2022, 7:13 PM

#

Dirty

full marsh Sep 28, 2022, 7:13 PM

#

Yes

rapid bay Sep 28, 2022, 7:13 PM

#

not always

full marsh Sep 28, 2022, 7:13 PM

#

But what about $\lim_{x \to 6} 2x$

glossy valveBOT Sep 28, 2022, 7:13 PM

#

RedstonePlayz09

full marsh Sep 28, 2022, 7:13 PM

#

rapid bay not always

In that specific example, yes

#

x is continuous

native briar Sep 28, 2022, 7:13 PM

#

Okay, need to remember to keep f(x) and x as separate ideas. (I understand how they are, just a slip of the brain)

#

2 lim(6)?

full marsh Sep 28, 2022, 7:14 PM

#

that limit is just equal to 2 * 6 which is 12

#

you could take the 2 out, but no reason to do that. just plug x = 6 in

native briar Sep 28, 2022, 7:14 PM

#

Sounds good. I was just told we need to 'understand why we can just plug it in' which is why I was writing out one of the laws.

full marsh Sep 28, 2022, 7:14 PM

#

of course, you will soon encounter limits where you can't just plug in the value.

#

For example, limits as x approaches infinity, or where the function is undefined

rapid bay Sep 28, 2022, 7:15 PM

#

native briar Okay, need to remember to keep f(x) and x as separate ideas. (I understand how t...

f(x) means function of x with "x" as its parameter

x is just a variable though

native briar Sep 28, 2022, 7:15 PM

#

Think I've got it. Thanks.

#

.close

full forumBOT Sep 28, 2022, 7:15 PM

#

Channel closed

Closed by @native briar

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

fallow kayak Sep 28, 2022, 7:24 PM

#

full forumBOT Sep 28, 2022, 7:24 PM

#

fallow kayak

scenic wren Sep 28, 2022, 7:29 PM

#

p has a point at 0.0 therefore p(0)=0

vast fossil Sep 28, 2022, 7:30 PM

#

And p'(0) = 0 follows from the definition of a turning point

#

Let's say p(x) = a_nx^n + ... + a_1x + a_0, using this information you can deduce that a_0 = a_1 = 0

scenic wren Sep 28, 2022, 7:31 PM

#

huh

vast fossil Sep 28, 2022, 7:32 PM

#

So p(x) = a_nx^n + ... + a_2x^2, therefore p(x) = x^2(a_nx^(n-2) + ... + a_2) = x^2q(x)

eager violet Sep 28, 2022, 7:32 PM

#

Don't just give answers

scenic wren Sep 28, 2022, 7:32 PM

#

interesting in germany we have different terms
a turning point would translate to wendepunkt which is where p' changes sign

vast fossil Sep 28, 2022, 7:33 PM

#

Ye, so it's 0 there (the derivative)

#

As long as the derivative is continuous

fallow kayak Sep 28, 2022, 7:34 PM

#

vast fossil So p(x) = a_nx^n + ... + a_2x^2, therefore p(x) = x^2(a_nx^(n-2) + ... + a_2) = ...

ohh that's why

#

thanks a lot

#

.close

full forumBOT Sep 28, 2022, 7:35 PM

#

Channel closed

Closed by @fallow kayak

Use .reopen if this was a mistake.

full forumBOT Sep 28, 2022, 8:21 PM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 28, 2022, 8:26 PM

#

Got a quick one, why take negative here when integrating?

full forumBOT Sep 28, 2022, 8:26 PM

#

torn jolt Got a quick one, why take negative here when integrating?

modern sentinel Sep 28, 2022, 8:27 PM

#

derivative of a^2-x^2=-2x

#

and -(-)=+

torn jolt Sep 28, 2022, 8:27 PM

#

Ahhh I see, thanks man!

#

.close

full forumBOT Sep 28, 2022, 8:27 PM

#

Channel closed

Closed by @long shell

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

wise ridge Sep 28, 2022, 8:40 PM

#

How do you do the second part

full forumBOT Sep 28, 2022, 8:40 PM

#

wise ridge How do you do the second part

modern sentinel Sep 28, 2022, 8:46 PM

#

on differentiating it would be
-sin(y)*dy/dx=1/2sqrtx, so you'll get dy/dx

wise ridge Sep 28, 2022, 8:53 PM

#

Oh I get it

#

.close

full forumBOT Sep 28, 2022, 8:53 PM

#

Channel closed

Closed by @wise ridge

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

muted flicker Sep 28, 2022, 9:16 PM

#

Hi, can someone explain to me this example?

full forumBOT Sep 28, 2022, 9:16 PM

#

muted flicker Hi, can someone explain to me this example?

brave blaze Sep 28, 2022, 9:19 PM

#

which lines are you failing to understand ?

muted flicker Sep 28, 2022, 9:23 PM

#

How the negative square root was used

#

Don't really see the connection even having the TB giving a brief explanation

brave blaze Sep 28, 2022, 9:26 PM

#

when x approaches -oo, that means x is negative right ?
when we factor by x^2 in the sqrt, we have : sqrt(x^2 (4 + 3/x^2)) = sqrt(x^2)*sqrt(4+3/x^2)

#

and we all know that sqrt(x^2) = |x|

#

we know too that
|x| = x when x > 0 and -x when its negative

muted flicker Sep 28, 2022, 9:32 PM

#

brave blaze we know too that |x| = x when x > 0 and -x when its negative

THANK YOU

#

Understand it much 🙏

#

.close

full forumBOT Sep 28, 2022, 9:32 PM

#

Channel closed

Closed by @muted flicker

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

past trail Sep 28, 2022, 9:39 PM

#

How to factor 81z^2+36z+4 and 4z^2-20z+25? They are squared but when I try to factor by grouping I get 9z(z+2)+2(9z+2) when the answer is (9z+2)(9z+2)

full forumBOT Sep 28, 2022, 9:39 PM

#

past trail How to factor 81z^2+36z+4 and 4z^2-20z+25? They are squared but when I try to fa...

regal gust Sep 28, 2022, 9:40 PM

#

Which one are you trying to factor

#

For $4z^2-20z+25$ you can do what multiplies to 100 and adds to -20

glossy valveBOT Sep 28, 2022, 9:40 PM

#

Gama

past trail Sep 28, 2022, 9:42 PM

#

for $4z^2-20z+25$ I got 2z(z-5)-5(2z-5)

glossy valveBOT Sep 28, 2022, 9:42 PM

#

EliteFriedRice

regal gust Sep 28, 2022, 9:43 PM

#

So factoring by grouping usually is reserved for polynomials with 4 terms from my understanding

#

Cause you’d group the first 2 and last 2

past trail Sep 28, 2022, 9:43 PM

#

oh

#

i thought grouping was for when coeffiecient wasn't 1 and couldn't be factored

#

because then the equation would be
4z^2-10z-10z+25
because -10-10=-20 and -10*-10=100 100=25*4(coeffec)

#

NVM

#

i redid it and I was wrong, it was 2z(2z-5) and -5(2z-5)

#

sorry

regal gust Sep 28, 2022, 9:45 PM

#

Gotcha I was trying to see what was going Wrong but you found it haha

past trail Sep 28, 2022, 9:48 PM

#

for 55 when grouping i got (9z)(z+2)+(2)(9z+2), how would i get (9z+2)^2

#

original equation was 81z^2+36z+4

#

nevermind

#

i just made a small mistake lol

#

.close

full forumBOT Sep 28, 2022, 9:52 PM

#

Channel closed

Closed by @past trail

Use .reopen if this was a mistake.

full forumBOT Sep 29, 2022, 12:50 AM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

topaz juniper Sep 29, 2022, 1:02 AM

#

full forumBOT Sep 29, 2022, 1:03 AM

#

topaz juniper

topaz juniper Sep 29, 2022, 1:03 AM

#

Probably a stupid question, but what is here meant by maximum?

#

I know what the maximum of a function is, but you're not given a function here 🤔

#

I was trying to help someone with this but was confused by this wording

nimble current Sep 29, 2022, 1:05 AM

#

you want to find the real numbers a,b such that a + 2b = 24 and ab is as big as possible

topaz juniper Sep 29, 2022, 1:05 AM

#

Okay

#

" ab is as big as possible"

#

That's what I was missing

#

Thanks

nimble current Sep 29, 2022, 1:06 AM

#

np

topaz juniper Sep 29, 2022, 1:06 AM

#

.close

full forumBOT Sep 29, 2022, 1:06 AM

#

Channel closed

Closed by @topaz juniper

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

ashen quail Sep 29, 2022, 1:15 AM

#

i need help understanding piecewise functions

full forumBOT Sep 29, 2022, 1:15 AM

#

ashen quail i need help understanding piecewise functions

deft zodiac Sep 29, 2022, 1:18 AM

#

what about e,m

full forumBOT Sep 29, 2022, 1:30 AM

#

@ashen quail Has your question been resolved?

full forumBOT Sep 29, 2022, 1:45 AM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

red oracle Sep 29, 2022, 1:46 AM

#

what is the use of rational expression in daily life

full forumBOT Sep 29, 2022, 1:46 AM

#

red oracle what is the use of rational expression in daily life

violet ridge Sep 29, 2022, 1:59 AM

#

red oracle what is the use of rational expression in daily life

calculus 🙂

#

passing a test

full forumBOT Sep 29, 2022, 2:04 AM

#

@red oracle Has your question been resolved?

full forumBOT Sep 29, 2022, 2:19 AM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

rigid mist Sep 29, 2022, 2:34 AM

#

full forumBOT Sep 29, 2022, 2:34 AM

#

rigid mist

rigid mist Sep 29, 2022, 2:34 AM

#

how do i do this

#

i know normal DA

#

@torn jolt sorry for the ping but you were able to help me a lot on the other question so could i get a little more help here

gleaming coral Sep 29, 2022, 2:36 AM

#

so uh yeah

#

lets refer to these units as X, Y

rigid mist Sep 29, 2022, 2:36 AM

#

okay

gleaming coral Sep 29, 2022, 2:36 AM

#

and the numbers as A,B

#

so a x^3 = b y^3

#

You know 'a'

#

and you can calculate y/x

#

A x^3 * (y/x)^3 = b y^3

#

Does that make sense so far

rigid mist Sep 29, 2022, 2:38 AM

#

i lost you at the last part

gleaming coral Sep 29, 2022, 2:39 AM

#

Hmmmm

#

What is confusing about the last part

rigid mist Sep 29, 2022, 2:40 AM

#

like im trying to visualize it with DA

#

but then i get confused

gleaming coral Sep 29, 2022, 2:40 AM

#

I'm not sure what DA is

rigid mist Sep 29, 2022, 2:41 AM

#

dimensional analysis

#

#

This is what I had been doing so far for normal questions

#

Now I got to ones asking for cubed units

#

I don’t get that

gleaming coral Sep 29, 2022, 2:41 AM

#

That's a really long way of doing it but it makes sense

#

so in essence, a x^3 = b y^3

#

You get the conversion y/x, and basically do $a x^3 \frac yx \frac yx \frac yx = b y^3$

glossy valveBOT Sep 29, 2022, 2:42 AM

#

KurtDee

gleaming coral Sep 29, 2022, 2:43 AM

#

I'm not sure how to explain the intuition

rigid mist Sep 29, 2022, 2:44 AM

#

yea I’m getting confused by that example

#

Sorry

gleaming coral Sep 29, 2022, 2:44 AM

#

Well I suppose you could either think of it two different ways

#

you're either 1. eliminating one part of the cubed unit at a time

#

or 2. you're calculating the conversion between cubes first

#

as to HOW it's done, you need to find "Xierons/Kygenes" first

#

And then you get the ratio of "cubic Xierons /cubic Kygenes" by raising to the third power

rigid mist Sep 29, 2022, 2:48 AM

#

is it possible for you to like write down on paper the first few steps?

#

im better at visualizing stuff

#

or draw on an app

gleaming coral Sep 29, 2022, 2:49 AM

#

I can solve a different problem

rigid mist Sep 29, 2022, 2:49 AM

#

yes thatll help too

gleaming coral Sep 29, 2022, 2:49 AM

#

Lets say I want to solve 20 sq feet to sq meters

#

$1 ft \approx 0.3m$

glossy valveBOT Sep 29, 2022, 2:50 AM

#

KurtDee

gleaming coral Sep 29, 2022, 2:51 AM

#

so we need m/ft, which is $\frac1 {0.3} \approx 3.28$

glossy valveBOT Sep 29, 2022, 2:51 AM

#

KurtDee

rigid mist Sep 29, 2022, 2:51 AM

#

yes

#

i understand that

gleaming coral Sep 29, 2022, 2:51 AM

#

$\frac {m^2}{ft ^2} = 10.76$

glossy valveBOT Sep 29, 2022, 2:51 AM

#

KurtDee

gleaming coral Sep 29, 2022, 2:53 AM

#

so actually we need to put this on the other side, $\frac{m^2}{ft^2} \frac 1 {10.76} = 1$

glossy valveBOT Sep 29, 2022, 2:53 AM

#

KurtDee

gleaming coral Sep 29, 2022, 2:53 AM

#

I should have done it like that to start with

#

finally, $20 ft^2 * \frac 1 {10.76} \frac{m^2}{ft^2} = 1.86 m^2$

glossy valveBOT Sep 29, 2022, 2:54 AM

#

KurtDee

gleaming coral Sep 29, 2022, 2:54 AM

#

You can also think of it like $m^2 = 10.76 ft^2$

glossy valveBOT Sep 29, 2022, 2:54 AM

#

KurtDee

gleaming coral Sep 29, 2022, 2:55 AM

#

in that case, you would still divide by 10.76 to get m^2

rigid mist Sep 29, 2022, 2:57 AM

#

im trying to understand this but i just cant for some reason

gleaming coral Sep 29, 2022, 2:57 AM

#

which part

#

i did invert it twice by accident

rigid mist Sep 29, 2022, 3:01 AM

#

so

#

i tried my best to solve the problem

#

this is what i ended up wit

#

#

for this

gleaming coral Sep 29, 2022, 3:04 AM

#

looks right to me

rigid mist Sep 29, 2022, 3:06 AM

#

thanks

#

now i have to do it with square

#

instead of cubed

#

is it similar?

#

or the same

#

but doing square instead of cube

#

oh it looks like it is

#

can you confirm

#

.close

full forumBOT Sep 29, 2022, 3:16 AM

#

Channel closed

Closed by @rigid mist

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

#

Channel closed

Closed by @worn bobcat

Use .reopen if this was a mistake.

full forumBOT Sep 29, 2022, 2:09 PM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 29, 2022, 2:10 PM

#

this is stupid:

λd: 400÷410nm

the symbol between 400 and 410 (for some reasons discord can't display one futher one), is used as to denote a rage between 400 and 410 (nm)?

full forumBOT Sep 29, 2022, 2:10 PM

#

torn jolt this is stupid: λd: 400÷410nm the symbol between 400 and 410 (for some reason...

brave blaze Sep 29, 2022, 2:11 PM

#

what

#

its a division symbol right ?

hot herald Sep 29, 2022, 2:14 PM

#

one futher one
?

full forumBOT Sep 29, 2022, 2:25 PM

#

@torn jolt Has your question been resolved?

torn jolt Sep 29, 2022, 2:25 PM

#

brave blaze its a division symbol right ?

yes

#

but in that context makes no sense

brave blaze Sep 29, 2022, 2:26 PM

#

why

torn jolt Sep 29, 2022, 2:26 PM

#

so I suppose it's used to indicate a rage

brave blaze Sep 29, 2022, 2:26 PM

#

what is a rage

torn jolt Sep 29, 2022, 2:26 PM

#

brave blaze why

it's from a led documentation

torn jolt Sep 29, 2022, 2:27 PM

#

brave blaze what is a rage

400 to 410 (nm)

brave blaze Sep 29, 2022, 2:27 PM

#

and its about wavelength ?

torn jolt Sep 29, 2022, 2:28 PM

#

brave blaze and its about wavelength ?

yes

#

for rage I meant range
I'm sorry autocorrection

brave blaze Sep 29, 2022, 2:29 PM

#

well I dont know what that notation means, but maybe try to understand the whole context

full forumBOT Sep 29, 2022, 2:58 PM

#

@torn jolt Has your question been resolved?

full forumBOT Sep 29, 2022, 3:28 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

dense edge Sep 29, 2022, 3:47 PM

#

full forumBOT Sep 29, 2022, 3:47 PM

#

dense edge

dense edge Sep 29, 2022, 3:47 PM

#

This is the first time polynomials have been explained to me like this… is this true what I have written near the bottom?

#

If so, what would a polynomial be called if it contains complex numbers or asymptotes?

#

This is from Professor Leonard btw

sour mauve Sep 29, 2022, 3:48 PM

#

a/x would give asymptotes?

#

elaborate

dense edge Sep 29, 2022, 3:49 PM

#

Well, i wrote that but I could be wrong.. he was saying negative exponents

sour mauve Sep 29, 2022, 3:49 PM

#

well if you mean that having a term a/x could lead to asymptotes then you're right

#

everything else is correct

dense edge Sep 29, 2022, 3:49 PM

#

The a/x was mine. I will adjust that

sour mauve Sep 29, 2022, 3:50 PM

#

everything else is good

dense edge Sep 29, 2022, 3:50 PM

#

Wow

#

This is the first time I have learned this..

#

I imagined polynomials as including all of the above

#

Imaginary numbers, asymptotes, you name it

#

I guess I was over complicating things

sour mauve Sep 29, 2022, 3:51 PM

#

polynomials don't have asymptotes

#

their domain is always all real numbers

dense edge Sep 29, 2022, 3:51 PM

#

Nice

#

Easier to remember

sour mauve Sep 29, 2022, 3:51 PM

#

the domain is not all real numbers only if there's a radical or fraction

#

which then introduces dividing by 0 and i

dense edge Sep 29, 2022, 3:52 PM

#

What do we call functions that do have complex numbers or asymptotes, if not polynomials functions? And are structured like a polynomial with highest degree first with constant at the end

sour mauve Sep 29, 2022, 3:52 PM

#

dense edge What do we call functions that do have complex numbers or asymptotes, if not pol...

just functions

#

pretty sure

dense edge Sep 29, 2022, 3:52 PM

#

Ah OK…

quick geode Sep 29, 2022, 3:52 PM

#

yeap

dense edge Sep 29, 2022, 3:52 PM

#

Complex function maybe?

sour mauve Sep 29, 2022, 3:53 PM

#

function is good enough

quick geode Sep 29, 2022, 3:53 PM

#

they dont really have a particular name

sour mauve Sep 29, 2022, 3:53 PM

#

yeah

quick geode Sep 29, 2022, 3:53 PM

#

u can call them anything u like

#

function is the most generic term

dense edge Sep 29, 2022, 3:54 PM

#

Polynomial can refer to binomial, trinomial, and anything above right? but not monomial? Or is it one of those all encompassing terms

sour mauve Sep 29, 2022, 3:54 PM

#

yeah

dense edge Sep 29, 2022, 3:54 PM

#

Like square and rectangle lol

sour mauve Sep 29, 2022, 3:54 PM

#

everything but monomial

dense edge Sep 29, 2022, 3:54 PM

#

Rectangle can be a square and vice versa

#

Still confusing to me lol

sour mauve Sep 29, 2022, 3:54 PM

#

well

#

what you have down so far is all good

quick geode Sep 29, 2022, 3:54 PM

#

not vice versa

sour mauve Sep 29, 2022, 3:55 PM

#

open up a ticket if you have more doubts

quick geode Sep 29, 2022, 3:55 PM

#

not all rectangles are squares

#

all squares are rectangles however

dense edge Sep 29, 2022, 3:55 PM

#

Right

#

Square is just a special case rectangle

quick geode Sep 29, 2022, 3:56 PM

#

yea

dense edge Sep 29, 2022, 3:57 PM

#

Sorry one more question to keep it on polynomials.. is it true anything above 4th power polynomial with a constant you will have a hard time using the quadratic formula?

#

Maybe even impossible to solve if 5th power with constant? Iirc it’s the constant that is the issue here, more than the power itself. Without constant it can be done?

sour mauve Sep 29, 2022, 3:58 PM

#

dense edge Sorry one more question to keep it on polynomials.. is it true anything above 4t...

yeah

#

well

#

there's a quadratic, cubic, and quartic formula

#

I'd suggest you use factoring or differentiation to solve anything above 3rd degree

dense edge Sep 29, 2022, 3:59 PM

#

Oooo I have only learned quadratic so far

#

OK

sour mauve Sep 29, 2022, 3:59 PM

#

tip: don't search up the quartic formula

dense edge Sep 29, 2022, 3:59 PM

#

Lol

sour mauve Sep 29, 2022, 3:59 PM

#

it gives me nightmares

dense edge Sep 29, 2022, 4:00 PM

#

I hope I won’t need to use it for Calc 1 or 2

sour mauve Sep 29, 2022, 4:00 PM

#

probably not

dense edge Sep 29, 2022, 4:00 PM

#

OK good

sour mauve Sep 29, 2022, 4:00 PM

#

if you do get a polynomial with a degree of 4 or higher you'll be taught a diff method of solving it

#

not the formula

dense edge Sep 29, 2022, 4:00 PM

#

Got it, thanks!

sour mauve Sep 29, 2022, 4:00 PM

#

np

dense edge Sep 29, 2022, 4:01 PM

#

https://tenor.com/view/okay-ok-see-what-i-did-there-jim-carrey-thumbs-up-gif-15801589

Tenor

#

.close

full forumBOT Sep 29, 2022, 4:01 PM

#

Channel closed

Closed by @dense edge

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

loud hull Sep 29, 2022, 4:26 PM

#

Trying to figure out why plugging in the x value here gives me the wrong y value

full forumBOT Sep 29, 2022, 4:26 PM

#

loud hull Trying to figure out why plugging in the x value here gives me the wrong y value

loud hull Sep 29, 2022, 4:26 PM

#

,w 5x-2y+3z=20, 2x-4y-3z=-9, x+6y-8z=21

glossy valveBOT Sep 29, 2022, 4:26 PM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

loud hull Sep 29, 2022, 4:26 PM

#

So those are the correct x,y, and x values

#

$\begin{tabular}{r} 5x-2y+3z=20\ +2x-4y-3z=-9\ \hline 7x-6y=11\end{tabular}$

glossy valveBOT Sep 29, 2022, 4:28 PM

#

dopediscorduser

loud hull Sep 29, 2022, 4:28 PM

#

[\begin{tabular}{r} 129x+6y=669\ + 7x-6y=11\ \hline x=5\end{tabular}]

glossy valveBOT Sep 29, 2022, 4:28 PM

#

dopediscorduser

loud hull Sep 29, 2022, 4:29 PM

#

But when I plug x back in

#

[7(5)-6y=11]
[y=\frac{19}{6}]

glossy valveBOT Sep 29, 2022, 4:29 PM

#

dopediscorduser

loud hull Sep 29, 2022, 4:29 PM

#

??

tardy vapor Sep 29, 2022, 4:29 PM

#

where did the 129x + 6y =669 come from?

loud hull Sep 29, 2022, 4:30 PM

#

One sec

#

It came from 5x-2y+3z=20, multiplied to a lcm to cancel out the z terms

#

I’ll write it out in latex

daring citrus Sep 29, 2022, 4:33 PM

#

loud hull \[7(5)-6y=11\] \[y=\frac{19}{6}\]

[7(5)-6y=11]
[y=\frac{24}{6}]

glossy valveBOT Sep 29, 2022, 4:33 PM

#

Alpha Kappa

loud hull Sep 29, 2022, 4:37 PM

#

Common lcm 3 and 8 of 24
[8(5x-2y+3z=20)]
[3(x+6y-8z=21)]

[\begin{tabular}{r} 40x-16y+24z=160\ + 3x+18y-24z=63\ \hline 43x+2y=223\end{tabular}/]

To eliminate the y term, LCM between 2 and 6 is 6
[3(43x+2y=223)= 129x+6y=669]

[\begin{tabular}{r} 129x+6y=669\ + 7x-6y=11\ \hline x=5\end{tabular}/]

glossy valveBOT Sep 29, 2022, 4:37 PM

#

dopediscorduser
Compile Error! Click the errors reaction for more information.
(You may edit your message to recompile.)

loud hull Sep 29, 2022, 4:38 PM

#

daring citrus \[7(5)-6y=11\] \[y=\frac{24}{6}\]

Alright

#

I guess I’m just bad at arithmetic

daring citrus Sep 29, 2022, 4:38 PM

#

happens

loud hull Sep 29, 2022, 4:38 PM

#

Thanks

#

.close

full forumBOT Sep 29, 2022, 4:38 PM

#

Channel closed

Closed by @loud hull

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

quasi nimbus Sep 29, 2022, 4:44 PM

#

Given the following equation system:

y = x^2 - 5x
y = 2x - 10

Find the intersection point of the line with the parable and represent it on paper

full forumBOT Sep 29, 2022, 4:44 PM

#

quasi nimbus Given the following equation system: 1. y = x^2 - 5x 2. y = 2x - 10 Find the i...

vast fossil Sep 29, 2022, 4:44 PM

#

Just solve x^2 - 5x = 2x - 10

quasi nimbus Sep 29, 2022, 4:44 PM

#

x1 = 2 and x2 = 5

vast fossil Sep 29, 2022, 4:45 PM

#

Now find the y values

quasi nimbus Sep 29, 2022, 4:45 PM

#

Ok

#

Ok done for both points

#

p1 (2, -6) and p2 (5, 0)

vast fossil Sep 29, 2022, 4:46 PM

#

Now just draw them on a plane

quasi nimbus Sep 29, 2022, 4:46 PM

#

Ok

#

Done

vast fossil Sep 29, 2022, 4:46 PM

#

That's it

quasi nimbus Sep 29, 2022, 4:47 PM

#

What about the parable

#

I have to draw it too

vast fossil Sep 29, 2022, 4:47 PM

#

It didn't ask you to draw it

#

Just the points

#

I presume

quasi nimbus Sep 29, 2022, 4:47 PM

#

I'm italian so i translated that way; the teacher wants us to draw the parable too

brittle steeple Sep 29, 2022, 4:48 PM

#

You know the x intercepts already

#

Where's the vertex?

quasi nimbus Sep 29, 2022, 4:49 PM

#

brittle steeple You know the x intercepts already

Actually I dont

#

I have to find them

brittle steeple Sep 29, 2022, 4:49 PM

#

ah right for some reason I thought it was factored already

quasi nimbus Sep 29, 2022, 4:49 PM

#

If u mean the interception points with the X axis

#

Do i keep y = x^2 -5x that way and solve it?

brittle steeple Sep 29, 2022, 4:50 PM

#

you find where y=0

#

but yeah vertex first probably

#

well you can do it either way really

quasi nimbus Sep 29, 2022, 4:52 PM

#

I dont think it comes out right

#

by setting y = 0 in the parable's equation

#

The intersection point with the X axis are 5,0 and 0,0

brittle steeple Sep 29, 2022, 4:53 PM

#

what are you getting

#

yeah

#

that's right

quasi nimbus Sep 29, 2022, 4:53 PM

#

Oh

#

Ok

#

So now i have to find the vertex

brittle steeple Sep 29, 2022, 4:54 PM

#

yeah

#

which you can find from the x-intercepts if you eant

#

want

quasi nimbus Sep 29, 2022, 4:54 PM

#

The vertex should be 5/2 and -25/4

#

Right?

brittle steeple Sep 29, 2022, 4:54 PM

#

yeah

quasi nimbus Sep 29, 2022, 4:55 PM

#

Ok

brittle steeple Sep 29, 2022, 4:55 PM

#

then you can just draw the rest by feeling

quasi nimbus Sep 29, 2022, 4:56 PM

#

Ok done

#

Thanks a lot!

#

.close

full forumBOT Sep 29, 2022, 4:56 PM

#

Channel closed

Closed by @quasi nimbus

Use .reopen if this was a mistake.

brittle steeple Sep 29, 2022, 4:57 PM

#

Np

full forumBOT Sep 29, 2022, 4:57 PM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

midnight prawn Sep 29, 2022, 5:02 PM

#

is there any way to solve it without using L-Hopital's rule?

full forumBOT Sep 29, 2022, 5:02 PM

#

midnight prawn is there any way to solve it without using L-Hopital's rule?

vast fossil Sep 29, 2022, 5:03 PM

#

How is L defined?

midnight prawn Sep 29, 2022, 5:03 PM

#

It's In

vast fossil Sep 29, 2022, 5:04 PM

#

So L(x) = lnx?

midnight prawn Sep 29, 2022, 5:04 PM

#

Yes

hot herald Sep 29, 2022, 5:04 PM

#

factor out -1/2, and you'll have a definition of the derivative

vast fossil Sep 29, 2022, 5:05 PM

#

Well $\lim_{x\to{3}}\frac{L(x) - L(3)}{-2x + 6} = -\frac{1}{2}\lim_{x\to{3}}\frac{L(x) - L(3)}{x - 3} = -\frac{1}{2}L'(3)$

hot herald Sep 29, 2022, 5:05 PM

#

half not third

vast fossil Sep 29, 2022, 5:05 PM

#

mb

glossy valveBOT Sep 29, 2022, 5:05 PM

#

A Lonely Bean

midnight prawn Sep 29, 2022, 5:07 PM

#

glossy valve **A Lonely Bean**

I'm trying to figure out how it get there, especially since I don't know logarithm principles

#

but tysm

midnight prawn Sep 29, 2022, 5:08 PM

#

hot herald factor out -1/2, and you'll have a definition of the derivative

is that I dont know derivatives yet

vast fossil Sep 29, 2022, 5:09 PM

#

You don't know what the derivative of ln is?

midnight prawn Sep 29, 2022, 5:09 PM

#

nope

vast fossil Sep 29, 2022, 5:10 PM

#

Eh you can look up a proof that it's 1/x

midnight prawn Sep 29, 2022, 5:12 PM

#

The thing is that i dont know if I can give a task with tools that I have not yet given in the course

#

I mean, is there no other way to do it? (no derivatives)

vast fossil Sep 29, 2022, 5:26 PM

#

Well you can use that proof to justify why L'(x) = 1/x

full forumBOT Sep 29, 2022, 5:31 PM

#

@midnight prawn Has your question been resolved?

midnight prawn Sep 29, 2022, 5:32 PM

#

vast fossil Well you can use that proof to justify why L'(x) = 1/x

I can't do that sadcat

vast fossil Sep 29, 2022, 5:32 PM

#

Alright without mentioning L'(x)

#

Just go from limit of (L(x) - L(3))/(x - 3) to 1/3

#

According to the proof

midnight prawn Sep 29, 2022, 5:36 PM

#

I don't know how to do it

vast fossil Sep 29, 2022, 5:44 PM

#

(L(x) - L(3))/(x - 3) = L(x/3) * 1/(x - 3) = L((x/3)^(1/(x-3)))
From here you can do a substitution, t = 3/(x - 3)
So the limit now is L((1/t + 1)^(t/3))

#

Which is the same as 1/3 * L((1 + 1/t)^t) as t approaches infinity

#

Does the limit inside the L look familiar?

midnight prawn Sep 29, 2022, 5:49 PM

#

vast fossil (L(x) - L(3))/(x - 3) = L(x/3) * 1/(x - 3) = L((x/3)^(1/(x-3))) From here you ca...

I don't understand how you go from multiplying the (1/(x-3)) to passing it as an exponent

midnight prawn Sep 29, 2022, 5:49 PM

#

vast fossil Does the limit inside the L look familiar?

Yes, is the limit e, right?

vast fossil Sep 29, 2022, 5:49 PM

#

Yes, so the limit is basically 1/3 * L(e)

#

And L(e) = 1 by definition

#

So it's just 1/3

midnight prawn Sep 29, 2022, 5:50 PM

#

midnight prawn I don't understand how you go from multiplying the (1/(x-3)) to passing it as an...

Can u explain me that, please?

vast fossil Sep 29, 2022, 5:51 PM

#

log(a) * b = log(a^b)

#

That's a lot property

midnight prawn Sep 29, 2022, 5:55 PM

#

vast fossil log(a) * b = log(a^b)

I see, now i understand, thank u so much!

#

.close

full forumBOT Sep 29, 2022, 5:56 PM

#

Channel closed

Closed by @midnight prawn

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

delicate idol Sep 29, 2022, 6:02 PM

#

If the magnitudes of two vectors are 3 and 4, and the angle between them is 40, determine the magnitude
of their cross product.

full forumBOT Sep 29, 2022, 6:02 PM

#

delicate idol If the magnitudes of two vectors are 3 and 4, and the angle between them is 40, ...

ripe trench Sep 29, 2022, 6:04 PM

#

use cross product formula 💀

delicate idol Sep 29, 2022, 6:04 PM

#

why the skull?

ripe trench Sep 29, 2022, 6:05 PM

#

vvell it vvas straightforvvard

delicate idol Sep 29, 2022, 6:06 PM

#

thats what i thought

#

but i used cos instead of sin

quick geode Sep 29, 2022, 6:07 PM

#

magnitude of cross product uses sin

#

Vector A * Vector B * sin theta

#

this is the magnitude of cross product of 2 vectors a and b

delicate idol Sep 29, 2022, 6:10 PM

#

thanks!!

full forumBOT Sep 29, 2022, 6:25 PM

#

@delicate idol Has your question been resolved?

#

Channel closed

Closed by @delicate idol

Use .reopen if this was a mistake.

full forumBOT Sep 29, 2022, 6:47 PM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 29, 2022, 6:49 PM

#

catBruh

full forumBOT Sep 29, 2022, 6:49 PM

#

torn jolt <:catBruh:715534048432488449>

torn jolt Sep 29, 2022, 6:49 PM

#

.close

full forumBOT Sep 29, 2022, 6:49 PM

#

Channel closed

Closed by @severe plover

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

umbral plinth Sep 29, 2022, 7:00 PM

#

Hello

full forumBOT Sep 29, 2022, 7:00 PM

#

umbral plinth Hello

umbral plinth Sep 29, 2022, 7:01 PM

#

what is the dimension of F = {M \in M_n(K) | tr(M) = 0}

#

is it 1 ?

full forumBOT Sep 29, 2022, 7:16 PM

#

@umbral plinth Has your question been resolved?

full forumBOT Sep 29, 2022, 7:31 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

pliant estuary Sep 29, 2022, 7:44 PM

#

in this example, why do the solution steps consist of first consolidating the terms in the numerator and then subtracting the denominator from the top two terms, rather than first subtracting the denominator from the top two terms, and then consolidating them?

full forumBOT Sep 29, 2022, 7:44 PM

#

pliant estuary in this example, why do the solution steps consist of first consolidating the te...

rose blaze Sep 29, 2022, 7:45 PM

#

There's a power rule that if a power is a negative number, it becomes a fraction

#

For example, 2^-2 = 1/(2^2)

#

When you multiply numbers with the same base number (in this case, p), you add the powers

#

So in reality you can't subtract from both of them individually
I hope that answers your question

pliant estuary Sep 29, 2022, 7:51 PM

#

Thank you!

#

.close

full forumBOT Sep 29, 2022, 7:51 PM

#

Channel closed

Closed by @pliant estuary

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

#

full forumBOT Sep 29, 2022, 8:15 PM

#

@pseudo bobcat Has your question been resolved?

full forumBOT Sep 29, 2022, 8:30 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

subtle leaf Sep 29, 2022, 8:40 PM

#

Just to be sure, this solution should have the $\mathscr{A}$ and $\mathscr{B}$ interchanged right?
(Apart from in the parentheses).

full forumBOT Sep 29, 2022, 8:40 PM

#

subtle leaf Just to be sure, this solution should have the $\mathscr{A}$ and $\mathscr{B}$ i...

glossy valveBOT Sep 29, 2022, 8:40 PM

#

CoffeeMan

full forumBOT Sep 29, 2022, 8:55 PM

#

@subtle leaf Has your question been resolved?

full forumBOT Sep 29, 2022, 9:26 PM

#

@subtle leaf Has your question been resolved?

fast peak Sep 29, 2022, 9:27 PM

#

what is M(B) and M(A)?

#

but something about this is mixed up, yes

subtle leaf Sep 29, 2022, 9:34 PM

#

The measurable functions on B and A, i.e.
$f \in M(\mathscr{B}) \iff \left( \forall X \in \mathscr{B} (\mathbb{R}) \colon f^{-1} (X) \in \mathscr{B} \right)$
where the $\mathscr{B}(\mathbb{R})$ is the borel-sigma algebra.

glossy valveBOT Sep 29, 2022, 9:35 PM

#

CoffeeMan

subtle leaf Sep 29, 2022, 9:36 PM

#

Anyhow, I think I just need some sleep tbh. But thanks. bye.

#

.close

full forumBOT Sep 29, 2022, 9:36 PM

#

Channel closed

Closed by @subtle leaf

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

worn zenith Sep 29, 2022, 9:42 PM

#

Wilhelm has $84 of coins in his wallet. There is 4x as many $5 dollar coins as $1 coins. How many of each does Wilhelm have?

full forumBOT Sep 29, 2022, 9:42 PM

#

worn zenith Wilhelm has **$84** of coins in his wallet. There is **4x** as many **$5** dolla...

glossy valveBOT Sep 29, 2022, 9:43 PM

#

JazzBo
Compile Error! Click the errors reaction for more information.
(You may edit your message to recompile.)

scenic wren Sep 29, 2022, 9:43 PM

#

he has only coins and 5 dollar bills right?

#

we can extract some equations from this info

#

bills equal 5
coins equal 1
therefore 5b+1c=84

worn zenith Sep 29, 2022, 9:44 PM

#

Well, it’s directly translated from Swedish. SEK (Swedish Crowns) whereas he has them in coins

scenic wren Sep 29, 2022, 9:44 PM

#

where b and c are the numbers of bills/coins

worn zenith Sep 29, 2022, 9:44 PM

#

1 and 5 SEK coins

#

Ok

scenic wren Sep 29, 2022, 9:45 PM

#

next we know we have 4 times as many bills as coins

#

this means
b=4c

#

we can substitude this into the first equation

worn zenith Sep 29, 2022, 9:45 PM

#

So its not 4b = 1c?

scenic wren Sep 29, 2022, 9:45 PM

#

we can test this

#

lets assume we have 1 bill

#

4 times 1 equals 4

#

so we would have 4 coins

#

which is the opposite of what we want

boreal marlin Sep 29, 2022, 9:46 PM

#

The amount of bills is four times the amount of coins

scenic wren Sep 29, 2022, 9:47 PM

#

so we have
5b+1c=84
b=4c
setting b to 4c in the first equation we get
20c+1c=84

#

the rest should be easy

worn zenith Sep 29, 2022, 9:48 PM

#

Ok thanks

worn zenith Sep 29, 2022, 9:54 PM

#

scenic wren the rest should be easy

Wait

#

What is the answer I’m getting?

#

4 can’t be the bill nor the $1 coin

scenic wren Sep 29, 2022, 9:55 PM

#

20c+1c=84
21c=84
c=4
remember that c is the amount of coins

#

so we have 4 coins

#

b=4c=16

worn zenith Sep 29, 2022, 9:57 PM

#

Sorry, I’m really bad at math. But how do I get this to the answer

#

Can you solve it so I can watch an example

#

Please

scenic wren Sep 29, 2022, 10:00 PM

#

what exactly are you stuck on?

worn zenith Sep 29, 2022, 10:03 PM

#

Getting b=4c=16 in to the total amount of each coin

scenic wren Sep 29, 2022, 10:03 PM

#

we know c=4 right?

worn zenith Sep 29, 2022, 10:03 PM

#

Yeah

scenic wren Sep 29, 2022, 10:04 PM

#

ok

worn zenith Sep 29, 2022, 10:04 PM

#

Oh wait

scenic wren Sep 29, 2022, 10:04 PM

#

we know we have 4 times as many bills as coins

worn zenith Sep 29, 2022, 10:04 PM

#

So I multiply both sides

scenic wren Sep 29, 2022, 10:04 PM

#

so b=4c

worn zenith Sep 29, 2022, 10:04 PM

#

Till it’s 84

scenic wren Sep 29, 2022, 10:04 PM

#

we already got c

#

so we just put c into the equation

#

b=4c
since c=4
b=4×4
so
b=16

worn zenith Sep 29, 2022, 10:05 PM

#

Alright

#

Now I get it

#

Thank you

scenic wren Sep 29, 2022, 10:05 PM

#

^^

full forumBOT Sep 29, 2022, 10:20 PM

#

@worn zenith Has your question been resolved?

#

Channel closed

Closed by @worn zenith

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

hearty cipher Sep 29, 2022, 10:26 PM

#

Can someone help me?

full forumBOT Sep 29, 2022, 10:26 PM

#

hearty cipher Can someone help me?

hearty cipher Sep 29, 2022, 10:27 PM

#

How would I simplify this?

regal gust Sep 29, 2022, 10:33 PM

#

hearty cipher How would I simplify this?

Ok so you’d want to distribute the exponent

hearty cipher Sep 29, 2022, 10:33 PM

#

Oh ok...How do I do that?

regal gust Sep 29, 2022, 10:34 PM

#

So you’d apply it to each term to get
$2^3x^3y^{2^3}$

hearty cipher Sep 29, 2022, 10:34 PM

#

Oh

regal gust Sep 29, 2022, 10:35 PM

#

Bot troubles bearlain

hearty cipher Sep 29, 2022, 10:35 PM

#

;o

glossy valveBOT Sep 29, 2022, 10:35 PM

#

Gama

regal gust Sep 29, 2022, 10:35 PM

#

There we go uwucat

#

The first and last term can be simplified further however

hearty cipher Sep 29, 2022, 10:35 PM

#

What would the outcome be?

regal gust Sep 29, 2022, 10:36 PM

#

So what’s 2^3

hearty cipher Sep 29, 2022, 10:36 PM

#

I don't see your answer?

#

8

regal gust Sep 29, 2022, 10:36 PM

#

Yep and now

hearty cipher Sep 29, 2022, 10:36 PM

#

OH

#

I got it

regal gust Sep 29, 2022, 10:36 PM

#

What’s y^{2^3}

#

Perfect

hearty cipher Sep 29, 2022, 10:36 PM

#

y 8?

regal gust Sep 29, 2022, 10:37 PM

#

So we know we have
8x^3y^2*3

atomic blade Sep 29, 2022, 10:37 PM

#

$(y^2)^3 ≠ y^{(2^3)}$

#

Make sure you're asking correctly

regal gust Sep 29, 2022, 10:37 PM

#

When we have an exponent to an exponent you multiple then

glossy valveBOT Sep 29, 2022, 10:37 PM

#

Umbraleviathan

atomic blade Sep 29, 2022, 10:38 PM

#

y^{2^3} isn't the same as (y^2)^3

#

Make sure you're asking the correct stuff

regal gust Sep 29, 2022, 10:38 PM

#

My bad blobsweat

hearty cipher Sep 29, 2022, 10:39 PM

#

My last question I need help on is this:

regal gust Sep 29, 2022, 10:40 PM

#

Nvm

#

So

#

You’d start my multiplying them

hearty cipher Sep 29, 2022, 10:51 PM

#

Sorry I was taking my dog out how do I multiply the problem?

#

Do I multiply the exponents to the number?

#

<@&286206848099549185>

#

.close

full forumBOT Sep 29, 2022, 10:56 PM

#

Channel closed

Closed by @hearty cipher

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

silent mango Sep 29, 2022, 11:01 PM

#

help

full forumBOT Sep 29, 2022, 11:01 PM

#

silent mango help

silent mango Sep 29, 2022, 11:03 PM

#

<@&286206848099549185>

full forumBOT Sep 29, 2022, 11:18 PM

#

@silent mango Has your question been resolved?

full forumBOT Sep 29, 2022, 11:33 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 29, 2022, 11:45 PM

#

is sine or cosine better?

full forumBOT Sep 29, 2022, 11:45 PM

#

torn jolt is sine or cosine better?

clear lily Sep 29, 2022, 11:46 PM

#

sine clearly

#

cosine is just sine in disguise

cloud shore Sep 29, 2022, 11:47 PM

#

Cos is better, cos is even

#

Even is better than odd

torn jolt Sep 29, 2022, 11:47 PM

#

imo sine is a bit more curvy

clear lily Sep 29, 2022, 11:47 PM

#

but sin(x) = x close to 0

cloud shore Sep 29, 2022, 11:48 PM

#

Engineer moment

clear lily Sep 29, 2022, 11:48 PM

#

🙂

regal gust Sep 29, 2022, 11:48 PM

#

Cosine obv cause it’s just sine + more ecstasy

clear lily Sep 29, 2022, 11:48 PM

#

its like asking whos better, pilot or copilot

#

clearly the pilot

#

hence the copilot is a co-pilot

regal gust Sep 29, 2022, 11:49 PM

#

Copilots don’t receive enough recognition

#

They have all the skills of the pilot but don’t get the fame

#

Therefore cosine is ultimately underestimated

clear lily Sep 29, 2022, 11:51 PM

#

hahah

#

sine gets to do the real jobs though

full forumBOT Sep 30, 2022, 12:02 AM

#

@torn jolt Has your question been resolved?

full forumBOT Sep 30, 2022, 12:17 AM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

brittle zenith Sep 30, 2022, 12:33 AM

#

I’m did something wrong can someone put me on the right direction

full forumBOT Sep 30, 2022, 12:33 AM

#

brittle zenith I’m did something wrong can someone put me on the right direction

brittle zenith Sep 30, 2022, 12:37 AM

#

.close

full forumBOT Sep 30, 2022, 12:37 AM

#

Channel closed

Closed by @brittle zenith

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

tired blade Sep 30, 2022, 12:54 AM

#

is that right?

full forumBOT Sep 30, 2022, 12:54 AM

#

tired blade is that right?

tired blade Sep 30, 2022, 12:55 AM

#

here's how it looks in a graph

twilit leaf Sep 30, 2022, 12:55 AM

#

looks good

tired blade Sep 30, 2022, 12:56 AM

#

twilit leaf looks good

so y=1/2x+1.5, is right?

twilit leaf Sep 30, 2022, 12:57 AM

#

both of the equations are the same so yes they both work

tired blade Sep 30, 2022, 12:57 AM

#

twilit leaf both of the equations are the same so yes they both work

thanks 👍

#

.close

full forumBOT Sep 30, 2022, 12:58 AM

#

Channel closed

Closed by @tired blade

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

tranquil moat Sep 30, 2022, 1:19 AM

#

i need help on Estimating Integers it's really hard and i have a quiz tomorrow think you can help me out.

full forumBOT Sep 30, 2022, 1:19 AM

#

tranquil moat i need help on Estimating Integers it's really hard and i have a quiz tomorrow t...

#

Please don't occupy multiple help channels.

deft zodiac Sep 30, 2022, 1:19 AM

#

yea

#

just

#

stick with 1 channel

#

.close

full forumBOT Sep 30, 2022, 1:19 AM

#

Channel closed

Closed by @deft zodiac

Use .reopen if this was a mistake.

full forumBOT Sep 30, 2022, 2:35 AM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

chilly patio Sep 30, 2022, 2:38 AM

#

Joe completed a trip of 503 miles in 8 hours. His speed during the day was 4 mph faster than her speed at night. She traveled 368 mi during the day and 135 mi at night. Find her speeds during the day and the night.

rn_image_picker_lib_temp_703a0344-2098-470e-bc44-2dada346c7e8.jpg

full forumBOT Sep 30, 2022, 2:38 AM

#

chilly patio Joe completed a trip of 503 miles in 8 hours. His speed during the day was 4 mph...

chilly patio Sep 30, 2022, 2:39 AM

#

I'm not sure how to use the s=d/t equation to make an equation to solve for variable x.

#

sorry. youre looking at the unfilled in variable box. ignore the equations to the right

boreal marlin Sep 30, 2022, 2:43 AM

#

Your unknown is the speed at night, call it x, you know the speed at day is x+4

chilly patio Sep 30, 2022, 2:45 AM

#

thank you

#

im gonna solve this out quick and post my result if i could get your input

torn jolt Sep 30, 2022, 2:46 AM

#

Let's see what you have

#

trip of 503 miles in 8 hours : so you can deduce the average speed

#

368 mi during the day: d for day

#

135 mi at night: d for night

#

s= d / t

#

d= ?

chilly patio Sep 30, 2022, 2:52 AM

#

okay so my day speed came out to be 6.3176 and my night speed came out to 2.3176 mph..

#

that doesnt seem right

torn jolt Sep 30, 2022, 2:52 AM

#

Well you can check it

chilly patio Sep 30, 2022, 2:53 AM

#

rn_image_picker_lib_temp_06f6fc91-6196-4d65-8e68-70220dba16aa.jpg

torn jolt Sep 30, 2022, 2:53 AM

#

If you do 368 mi with a speed of 6.3176 and 135 with a speed of 2.3176

#

Does it takes 8 hours to make the trip?

chilly patio Sep 30, 2022, 2:53 AM

#

Here's my updated work. And I used the time equations to find the speed

#

So that wouldn't work cuz it would obviously be equal to 8

#

WAIT I'm dumb

#

Again

#

Why would time be equal to eachother

torn jolt Sep 30, 2022, 2:54 AM

#

Yeah

#

why? lol

#

What is average speed with x and x+4?

chilly patio Sep 30, 2022, 2:57 AM

#

63.875 i think

#

couldnt I do (308/x+4)*(135/x)=8?

#

and solve for x?

torn jolt Sep 30, 2022, 2:59 AM

#

Hmm

#

It's a + but yeah

#

Total time is time day + time night

chilly patio Sep 30, 2022, 3:00 AM

#

yeah i meant a plus my b

torn jolt Sep 30, 2022, 3:03 AM

#

It's 368 too

chilly patio Sep 30, 2022, 3:04 AM

#

?

#

what you mean

torn jolt Sep 30, 2022, 3:04 AM

#

not 308

chilly patio Sep 30, 2022, 3:04 AM

#

fk

torn jolt Sep 30, 2022, 3:04 AM

#

just in case you wrote it 308

chilly patio Sep 30, 2022, 3:14 AM

#

so uh

#

had to use quadratic equations lol

torn jolt Sep 30, 2022, 3:16 AM

#

What do you find?

chilly patio Sep 30, 2022, 3:16 AM

#

rn_image_picker_lib_temp_79fc6a6d-fa0d-4530-97e5-64ad21414e3d.jpg

#

He doesn't want rounding. So that's what I have lol

torn jolt Sep 30, 2022, 3:18 AM

#

What value is this

#

It looks wrong

chilly patio Sep 30, 2022, 3:18 AM

#

the quadratic would come out to 52.65688

#

and yeah it does look wrong lol

torn jolt Sep 30, 2022, 3:19 AM

#

Yeah, you can check it it's wrong

chilly patio Sep 30, 2022, 3:19 AM

#

how would i check?

torn jolt Sep 30, 2022, 3:20 AM

#

well (368/x+4)+(135/x)=8?

#

Try it with x = 52.66

chilly patio Sep 30, 2022, 3:21 AM

#

comes out to 9

#

not 8

#

what did I do?

torn jolt Sep 30, 2022, 3:22 AM

#

hmm

chilly patio Sep 30, 2022, 3:23 AM

#

its correct up to the quadratic

#

hold on let me check the quadratic

torn jolt Sep 30, 2022, 3:23 AM

#

yeah

chilly patio Sep 30, 2022, 3:24 AM

#

MISINPUT

#

fuck

#

this is worse than coding

torn jolt Sep 30, 2022, 3:26 AM

#

Not sure what you wrote

chilly patio Sep 30, 2022, 3:27 AM

#

the number inside the root was wrong. I used symbolab to assist and started the problem with 308 instead of 368

torn jolt Sep 30, 2022, 3:27 AM

#

Ho wait yeah

chilly patio Sep 30, 2022, 3:29 AM

#

rn_image_picker_lib_temp_248d3f6c-1c2b-4373-a8cd-5f4c461bc38c.jpg

#

How do I get from point a to point b here?

brittle steeple Sep 30, 2022, 3:31 AM

#

First, distributing

chilly patio Sep 30, 2022, 3:31 AM

#

done

#

503x + 540 = 8x^2 + 32x

#

do I have to set all factors equal to zero?

brittle steeple Sep 30, 2022, 3:34 AM

#

nah just get everything on one side

#

so it's in the usual quadratic form

chilly patio Sep 30, 2022, 3:34 AM

#

so 8x^2 - 471x - 540 = 0

brittle steeple Sep 30, 2022, 3:35 AM

#

yeah

#

then do quadratic equation, hopefully with a calculator lol

chilly patio Sep 30, 2022, 3:40 AM

#

rn_image_picker_lib_temp_1ef4183b-9d3b-4eec-874f-508d18128b06.jpg

#

RIGHT?

full forumBOT Sep 30, 2022, 3:55 AM

#

@chilly patio Has your question been resolved?

#

Channel closed

Closed by @chilly patio

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

grim kestrel Sep 30, 2022, 4:10 AM

#

Screen_Shot_2022-09-30_at_12.07.01_AM.png

full forumBOT Sep 30, 2022, 4:10 AM

#

grim kestrel

grim kestrel Sep 30, 2022, 4:10 AM

#

why is it 1/4t^2 at end

#

i understand the constant and rest remains untouched

balmy peak Sep 30, 2022, 4:10 AM

#

bec u have -1/4t^2

#

1/2t^2 - 1/4t^2

deft zodiac Sep 30, 2022, 4:11 AM

#

grim kestrel Sep 30, 2022, 4:11 AM

#

oh i was seeing it as a 7

#

not 2

#

my b

#

ty

deft zodiac Sep 30, 2022, 4:11 AM

#

happens

#

holoApple

full forumBOT Sep 30, 2022, 4:26 AM

#

@grim kestrel Has your question been resolved?

full forumBOT Sep 30, 2022, 4:41 AM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

sly kelp Sep 30, 2022, 4:53 AM

#

full forumBOT Sep 30, 2022, 4:53 AM

#

sly kelp

sly kelp Sep 30, 2022, 4:53 AM

#

can anyone tell me where i went wrong with this integral

#

instead of |2x|, its just x

proud willow Sep 30, 2022, 5:06 AM

#

sly kelp instead of |2x|, its just x

when you factor out 1/2 you would only have 1/x inside I think

sly kelp Sep 30, 2022, 5:07 AM

#

.close

full forumBOT Sep 30, 2022, 5:07 AM

#

Channel closed

Closed by @sly kelp

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

covert sequoia Sep 30, 2022, 5:19 AM

#

full forumBOT Sep 30, 2022, 5:19 AM

#

covert sequoia

covert sequoia Sep 30, 2022, 5:19 AM

#

hello I don't know how to solve for most of these problems

#

the power to 1/3 is odd

deft zodiac Sep 30, 2022, 5:20 AM

#

so first part first?

smoky wing Sep 30, 2022, 5:20 AM

#

Are you familiar with the exponent rules/laws

covert sequoia Sep 30, 2022, 5:20 AM

#

yes up til fractions and I get lost

#

like 1/3

#

the 2nd problem on that list

#

well pretty much everything except the first one, even if I had some examples of how you would solve those particular problems it would help me figure these out

smoky wing Sep 30, 2022, 5:23 AM

#

So you know this law $(a^m)^n = a^{mn}$

glossy valveBOT Sep 30, 2022, 5:23 AM

#

Pure

smoky wing Sep 30, 2022, 5:24 AM

#

You can apply this for the second q

full forumBOT Sep 30, 2022, 5:37 AM

#

@covert sequoia Has your question been resolved?

full forumBOT Sep 30, 2022, 5:52 AM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

full forumBOT Sep 30, 2022, 1:00 PM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 30, 2022, 1:01 PM

#

full forumBOT Sep 30, 2022, 1:01 PM

#

torn jolt

vast fossil Sep 30, 2022, 1:04 PM

#

Use u-sub, let u = cosx

#

Also don't forget the dx

torn jolt Sep 30, 2022, 1:05 PM

#

oh alr

#

ty

torn jolt Sep 30, 2022, 1:07 PM

#

vast fossil Use u-sub, let u = cosx

hey

#

i got this but no minus sign

#

how come the answer has a minus?

vast fossil Sep 30, 2022, 1:08 PM

#

du = -sinx dx, from here

torn jolt Sep 30, 2022, 1:09 PM

#

ohh

torn jolt Sep 30, 2022, 1:09 PM

#

vast fossil du = -sinx dx, from here

wait how

vast fossil Sep 30, 2022, 1:09 PM

#

Derivative of cos is -sin

torn jolt Sep 30, 2022, 1:09 PM

#

oh my god

#

its late

#

i forgot its deriavtive n not integral

#

!close

#

?close

#

.close

full forumBOT Sep 30, 2022, 1:13 PM

#

Channel closed

Closed by @steel yacht

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 30, 2022, 1:18 PM

#

full forumBOT Sep 30, 2022, 1:18 PM

#

torn jolt

torn jolt Sep 30, 2022, 1:18 PM

#

Looking at a practice exam. What is the curly looking P?

fast peak Sep 30, 2022, 1:19 PM

#

power set

#

(probably)

next sail Sep 30, 2022, 1:19 PM

#

yes

torn jolt Sep 30, 2022, 1:19 PM

#

fast peak power set

Thank you. Forgot those existed. Going to do a couple practice problems to refresh myself.

#

.close

full forumBOT Sep 30, 2022, 1:19 PM

#

Channel closed

Closed by @median lodge

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 30, 2022, 1:35 PM

#

full forumBOT Sep 30, 2022, 1:35 PM

#

torn jolt

torn jolt Sep 30, 2022, 1:36 PM

#

I'm having some issues just understanding a bit of negation exercises.

#

Like why is b >=?

#

I understand where the > comes from as you're saying the opposite of a statement.

#

idk im being silly

#

.close

full forumBOT Sep 30, 2022, 1:37 PM

#

Channel closed

Closed by @median lodge

Use .reopen if this was a mistake.

full forumBOT Sep 30, 2022, 5:46 PM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

molten smelt Sep 30, 2022, 5:55 PM

#

Say you collect all the cards that show a “5” [there should be 10 of them]. Imagine drawing 7 times,
with replacement, from this group of cards; what is the probability that you would will observe:
one set of three matching suits
two sets of two matching suits (that aren’t the same as eachother and not the same as the set of three)

full forumBOT Sep 30, 2022, 5:55 PM

#

molten smelt Say you collect all the cards that show a “5” [there should be 10 of them]. Imag...

molten smelt Sep 30, 2022, 5:55 PM

#

“deck has 10 suits with normal 13 denominations” 130 cards total.

torn jolt Sep 30, 2022, 6:05 PM

#

molten smelt Say you collect all the cards that show a “5” [there should be 10 of them]. Imag...

Why are there 10 "5" in a card deck?

#

#

I only see 4 "5"

full forumBOT Sep 30, 2022, 6:11 PM

#

@molten smelt Has your question been resolved?

full forumBOT Sep 30, 2022, 6:26 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

full forumBOT Sep 30, 2022, 6:53 PM

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

torn jolt Sep 30, 2022, 6:58 PM

#

molten smelt Say you collect all the cards that show a “5” [there should be 10 of them]. Imag...

what is a set?

full forumBOT Sep 30, 2022, 6:58 PM

#

torn jolt what is a set?

torn jolt Sep 30, 2022, 6:59 PM

#

#

ivory cairn Sep 30, 2022, 7:06 PM

#

where are you stuck?

torn jolt Sep 30, 2022, 7:12 PM

#

I think i got the first one now

#

#

#

#

#

,calc 0.0574010010

glossy valveBOT Sep 30, 2022, 7:13 PM

#

Result:

57.4

torn jolt Sep 30, 2022, 7:14 PM

#

57.4% right ?

#

@wild sleet Do you know how to programm a simulation for this?

torn jolt Sep 30, 2022, 7:16 PM

#

ivory cairn where are you stuck?

How does the second task work? I know how to calculate that you draw a card twice, but how when you want to draw two cards twice?

#

You have to make a computer programm again for this?

#

nvm this is also like a programm for this

#

so is a good coinflip that i get 2 times the same number twice lets see

#

,w 7 random numbers between 1 and 10

glossy valveBOT Sep 30, 2022, 7:31 PM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

torn jolt Sep 30, 2022, 7:31 PM

#

,w 7 random numbers between 1 and 10

glossy valveBOT Sep 30, 2022, 7:31 PM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

torn jolt Sep 30, 2022, 7:31 PM

#

Yep

#

nah its 57% to get one number trice

#

,w 7 random numbers between 1 and 10

glossy valveBOT Sep 30, 2022, 7:31 PM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

torn jolt Sep 30, 2022, 7:32 PM

#

why dont i get it

#

,w 7 random numbers between 1 and 10

glossy valveBOT Sep 30, 2022, 7:32 PM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

torn jolt Sep 30, 2022, 7:32 PM

#

did i calculate it wrong?

#

,w 7 random numbers between 1 and 10

glossy valveBOT Sep 30, 2022, 7:34 PM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

torn jolt Sep 30, 2022, 7:35 PM

#

last roll

#

,w 7 random numbers between 1 and 10

glossy valveBOT Sep 30, 2022, 7:35 PM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

torn jolt Sep 30, 2022, 7:35 PM

#

like 10 times but no number three times

torn jolt Sep 30, 2022, 7:35 PM

#

torn jolt

i see the error i calc for 10 draws

#

times 1000

#

#

,calc 0.02296*1000

glossy valveBOT Sep 30, 2022, 7:44 PM

#

Result:

22.96

torn jolt Sep 30, 2022, 7:44 PM

#

how do i solve b)?

#

?

full forumBOT Sep 30, 2022, 8:00 PM

#

@torn jolt Has your question been resolved?

full forumBOT Sep 30, 2022, 8:39 PM

#

@torn jolt Has your question been resolved?

full forumBOT Sep 30, 2022, 9:41 PM

#

@torn jolt Has your question been resolved?

full forumBOT Sep 30, 2022, 10:41 PM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

scarlet galleon Sep 30, 2022, 11:15 PM

#

full forumBOT Sep 30, 2022, 11:15 PM

#

scarlet galleon

scarlet galleon Sep 30, 2022, 11:15 PM

#

sorry having a hard time understanding how they got U and V

#

directino vector

full forumBOT Sep 30, 2022, 11:30 PM

#

@scarlet galleon Has your question been resolved?

full forumBOT Oct 1, 2022, 12:00 AM

#

@scarlet galleon Has your question been resolved?

proven jay Oct 1, 2022, 1:01 AM

#

@scarlet galleon

scarlet galleon Oct 1, 2022, 1:02 AM

#

ye

#

@proven jay

proven jay Oct 1, 2022, 1:04 AM

#

Can you find a vector lying in the plane?

scarlet galleon Oct 1, 2022, 1:05 AM

#

[-5,1,0]

#

[0,-2,1]

#

subtract it to get a vector?

scarlet galleon Oct 1, 2022, 1:25 AM

#

@proven jay

full forumBOT Oct 1, 2022, 2:25 AM

#

@scarlet galleon Has your question been resolved?

humble steppe Oct 1, 2022, 2:57 AM

#

scarlet galleon

Express RHS as a matrix-vector multiplication, then u and v are just s-column and t-column in the matrix.

The reason that direction vectors can be found in this way is due to the “geometric meaning” or context of the matrix 🙂

scarlet galleon Oct 1, 2022, 3:04 AM

#

O

scarlet galleon Oct 1, 2022, 3:04 AM

#

humble steppe Express RHS as a matrix-vector multiplication, then u and v are just s-column an...

thanks!

#

@humble steppe sorry one thing

#

so I can always find direction vector like this given 3 parametric equations right

humble steppe Oct 1, 2022, 3:31 AM

#

scarlet galleon so I can always find direction vector like this given 3 parametric equations rig...

It depends. If what you encountered is linear, “well-behaved” equations, then you can do that.

scarlet galleon Oct 1, 2022, 3:32 AM

#

i see

full forumBOT Oct 1, 2022, 5:32 AM

#

@scarlet galleon Has your question been resolved?

full forumBOT Oct 1, 2022, 7:32 AM

#

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

#

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

merry atlas Oct 1, 2022, 8:00 AM

#

Could someone help me make sense of this rational partitioning problem? Might be mistranslating that, but the problem is to rewrite this rational polynomial as the sum of two rational polynomials

full forumBOT Oct 1, 2022, 8:00 AM

#

merry atlas Could someone help me make sense of this rational partitioning problem? Might be...

deft zodiac Oct 1, 2022, 8:00 AM

#

nani

#

cant u just use 0+itself

merry atlas Oct 1, 2022, 8:01 AM

#

On this form, except I don't have enough constants in the rightmost rational

deft zodiac Oct 1, 2022, 8:01 AM

#

oh