help-0

[thin salmon]

trigonometry

[limpid spade]

well try to find length of xy first

what will u do

[alpine sable]

<@&286206848099549185>

[limpid spade]

dude

stop cross posting

[alpine sable]

help me and i wont have to 😳

[limpid spade]

you would love this

[alpine sable]

do it

[obtuse mesa]

I don't even know how to go about this

[sinful pike]

is that a test ? (5pts)

[spark shadow]

Please help

<@&286206848099549185>

[limpid spade]

,rotate

[spark shadow]

Dude ?

[limpid spade]

?

[spark shadow]

some way to solve this ?

[muted raft]

just apply power rule?

U sub I guess

[spark shadow]

please explain

[pale terrace]

An earthquake has a Richter scale magnitude of 7.2.
There is an aftershock which has a magnitude of 5.6. Find the relative intensity of the aftershock compared to the earthquake.

hello if someone can help me solve this or give me the formula that it needs I'll be greatful

[sinful pike]

you should search for a channel that is not in use x_x

[pale terrace]

sorry

[sinful pike]

ah sorry this doesn't make sense

[spark shadow]

i don't get it

[sinful pike]

yeah sorry i was trying it myself and i thought it made sense but it was a mistake while i was writing x_x

[tribal stone]

@spark shadow
substitute x^(1/2 )=t
first

[alpine sable]

,help

[ocean seal]

A brief description and guide on how to use me was sent to your DMs!
Please use ,list to see a list of all my commands, and ,help cmd to get detailed help on a command!

[tribal stone]

@spark shadow

take x=0.1888... first
now multiply that by 10
when u multiply by 10 the decimal point shifts to the right by one place.
so 10x=1.8888...
subtract x from 10x and tell me what u get

[alpine sable]

i tried once and she said i was wrong

[glass lichen]

Dont crosspost, also you never responded to your previous question. So read that and apply the exact same thing

[spark shadow]

thank you sooooooooooooooooooo much

can you help with few more

@tribal stone

[tribal stone]

yep i'll try

[spark shadow]

This one mainly

[tribal stone]

apply partial fractions here

[spark shadow]

how ?

[tribal stone]

the denominator is expressible as the product of a linear factor and a quadratic

[spark shadow]

can you show on paper , please i have very less knowledge on partial

[tribal stone]

ok

[alpine sable]

what grades this

[spark shadow]

i am in 11th , but these things are of 12th most probably

[tribal stone]

like this

u have to find the values of A,B,C now and write the function inside the integral in that form which is on RHS

[spark shadow]

and now ?

how will we find ABC

[tribal stone]

by equating the numerator

on both sides

[spark shadow]

Is this correct

@tribal stone how do we know when to write just A or Bx+c

[tribal stone]

this is correct

[mossy topaz]

Hi. Is this room available?

[tribal stone]

nope it's busy rn
check other ones

[spark shadow]

what is meant by repeating, equale roots ?

[tribal stone]

when the linear factor has been squared or cubed or... it is said to be repeating
same is is the case with quadratic

when the power of the function>1 basically

[spark shadow]

aah ok , so how is this in case of quadratics

[tribal stone]

same case,you have to form partial fractions in the same manner if the quadratic is repeating

[spark shadow]

also bro please help with this one

[tribal stone]

observe this example

[spark shadow]

got it 👍

[spark shadow]

now how to this one

substitution ?

[spark shadow]

Thanks you @tribal stone

[quasi scarab]

is this a test?

[alpine sable]

<@&286206848099549185> help please

[tribal stone]

arcsin x+ arc cosx= pi/2
use that identity of inverses to take
pi/2 as the common out
then you'll be left with the square root term.
substitute (x-3)= t^2 and differentiate it to clear off the square root term and you'll be done

[spark shadow]

got it , i need to learn inverse trigo

[quasi scarab]

sry, we cant help with tests here #rules

[gaunt roost]

For r = b + acos(theta), I understand the pruposes of r, a, and theta but I don't understand the purpose of b. Can someone explain?

[glacial pier]

May I get help I dun know why can I find y=√24

but y= square root 24 is the correct answer

<@&286206848099549185>

[alpine sable]

Is 1/i =-i

[tribal stone]

yes
if you multiply the numerator and denominator of 1/i by ( i ) you'll get -i

[alpine sable]

Thanks man

[glacial pier]

can i get help for mine too

[tribal stone]

ya sure,send the question first
i can't understand what you've written

[tribal stone]

this is correct then

[glacial pier]

how to find the y=square root 4

can i have the formula

this is not my work

i want to understand how the y is found

[tribal stone]

oh ok ,so u don't know how to do it
np

so basically,the tangent to any any function is found by taking the derivative to that function (with respect to the independent variable)

[glacial pier]

how understand how x is found

but not y

[tribal stone]

for that u just need to input the values of x that you found into the original equation

y=f(x)
you have found the values of x
now input them in f(x) to get the values of y

do u get this?

[glacial pier]

yes thanks

[worn aurora]

"any set that is closed, achronal, and has no edge is called a partial Cauchy surface."

What does edge mean here ?

[cedar mist]

Can anyone help please, I don't believe my answers are correct and have no one to check them.

[alpine sable]

very simple question that I need help with

[mellow nebula]

quick stats-related question - in AP statistics we learn to estimate with confidence with methods that are optimal as long as we are sampling less than 10% of our population. I read somewhere that if we can sample over 10%, then there are more optimal statistical procedures to estimate parameters (a confidence interval, for example). how do these methods differ from the ones used?

[alpine sable]

not asking for a proof either, just a quick answer why

[gray isle]

6^5

,w 6^5

[minor heath]

nope, 5log(6) does equal to log(7776) using the power rule log(a^b)=a log(b)

[alpine sable]

wait

actually it does

[gray isle]

whos saying they're not equal

[alpine sable]

wolframalpha didn't say it was an alternative form

guess i should've did it myself lmfao

okay thanks

[mellow nebula]

wolframalpha can be sus at times lol

[gusty oyster]

Hi, could anyone please tell me how they got upper limit?

0< (e^(1/n))/n^3 < e/n^3

I originally have (e^(1/n))/n^3

[alpine sable]

hello I have a question and this is it : Francesca chooses an integer from the list −4, −3, −2, −1, 0, 1, 2, 3, 4, 5, 6 and then a
second integer that is larger than the first. How many such pairs of integers can she
choose so that the sum of the pair is 3?

looking for a technique or something to find the equation

[outer lagoon]

Does a vector perpendicular to a line cross that line?

[alpine sable]

english pls

[near warren]

how do I do this?

[alpine sable]

glhf

[alpine sable]

please someone help

[keen kayak]

hello

[brittle grove]

hi

can anyone help me with a geometry question

biscuit are u online

[heady sequoia]

imagine the angle that is 85 degrees was instead some angle y that we could change. What angle y would maximize the lenght of the 5x-10 side?

👍

wait @strong citrus do you still need help

[strong citrus]

2 < x < 7?

and this one would be

5 < x < 29?

im hoping im not crazy wrong lol

[oak wigeon]

[vagrant rover]

Is this C?

Or is that not what relative minimum means

[rocky siren]

ayo homie , is 2x-10 the angle or the side in this question ?

[strong citrus]

Angle

[bold token]

I am confused on the whole "the variance is known or unknown" thing.

Can I just multiply the deviation itself and get the variance? Why is it unknown?

[woeful pulsar]

when we verify the mean, we are also not sure if the standard deviation is also correct

after all, it could be possible that both the 800 hours and 100 s.d. claim is wrong

[bold token]

Oh so the variance is unknown, because the population is unknown?

[woeful pulsar]

variance is unknown because we are assessing the claim

[bold token]

Oh I see

Another question, what's the difference of standard error and standard deviation? there are no deviation on sample means?

[woeful pulsar]

standard deviation is a property of a distribution/list of data

standard error seems to be the property of a parameter

https://en.wikipedia.org/wiki/Standard_error

[bold token]

So deviation is the scale of a given size right?

Error is used to get the scale of a population from a sample?

nope, I got it

thx

[woeful pulsar]

guess this is resolved

[steady scroll]

I finished 80% of the Khan Algebra 1 course, I was planning on going to Calculus and then onto quantum theory for my own reasons. So I should do Algebra 2 right and then Calculus? What's the point of geometry or trigonometry here? Do they lead to something more interesting after?

[bold token]

You need algebra 2 for calculus, but I am not sure in geometry or trigo

[rich basin]

Is 2x + 10 the angle or the length of the side there?

[bold token]

wait trigo and geo actually supports calculus

[steady scroll]

yeah well I sort of just wanted to ask people to inspire me to learn geometry if it doesn't have to directly do with calculus

[strong citrus]

angle @rich basin

[steady scroll]

alright

I want to do beyond high school stuff and beyond calculus after

[bold token]

Im not really sure because i'm learning calcu right now, so far, basics of geo and trigo is used

[steady scroll]

ah I see thanks a lot

[rich basin]

Ok, that's what I thought... I have to think about it some more then. My first attempt resulted in a really nasty expression.

[alpine sable]

help me what is N

[strong citrus]

Haha have fun 😉

[rich basin]

Dead end? I am off to work, but I'll give it another go tonight.

[strong citrus]

Uhhhhhh

It’s just

5 < x < 29

@rich basin

[crisp tinsel]

hi guys

How do you get y=x/2 from that equation?

[alpine sable]

what is lambda, would u show the whole soln pls

[rich basin]

@strong citrus No, that would be the case if the sides that are now 15 and 18 were equal.

[strong citrus]

I got the question right tho...

[rich basin]

Hmm....

[strong citrus]

_ < x < _

I can’t put underscores so pretend they are on both sides

The range from min to max. Has to be min 0 so 2x - 10 / 2(5) - 10 = 0

Then max is 48 so

2x - 10 = 48

2x = 58

X= 29

5 < x < 29

[rich basin]

@strong citrusAssume that both angles are 48 degrees, and the length of BC = CD. Do you see how that would force AB = AD?

[strong citrus]

Yeah tbh I don’t really understand how it works, I just know how to do it lmao. I def see what your saying tho

[rich basin]

But you got confirmation that your answer of 5 <= x <= 29 is correct?

[rose elm]

I could’t solve 4e😳

[woeful pulsar]

ooh

[woeful pulsar]

what is the lower bound obtained?

[rose elm]

33 for the lower bound

[vale wigeon]

@hard pilot this is against the rules of the server.

read #❓how-to-get-help next time.

[woeful pulsar]

how was it obtained?

[next pulsar]

can anyone explain to me how this is true?

all constants are real

[sage summit]

that's just a change of basis

do you know the definitions of cosh and sinh

[next pulsar]

yes i do, but i thought that through the definition it would only be equal to cosh(wx)?

what am i missing?

this is the original ODE, with y(0) = y(1) = 0

[sage summit]

forall real numbers A and B there exist real numbers C1 and C2 such that the identity holds

wdym "it would only be equal to cosh(wx)"

sinh just doesn't exist anymore ?

[next pulsar]

this is where my confusion arose

because 1/2(e^x + e^-x) = coshx and thats what the form on the left hand side looks like

[sage summit]

???

say idk, A=2 and B=6

there are constants C1 and C2 such that 2exp(wx) + 6exp(-wx) = C1 sinh(wx) + C2 cosh(wx)

2exp(wx) + 6exp(-wx) is certainly not just cosh(wx)

[next pulsar]

ok yeah that's definitely not true I agree

but i am still confused as to how the equivalence holds

[sage summit]

well you just use the definitions of cosh and sinh and solve a linear system of order 2

to get C1 and C2

[next pulsar]

what did you mean when you said "change of basis" earlier?

[sage summit]

I mean, {cosh(wx), sinh(wx)}, is another basis of the real vector space spanned by exp(wx) and exp(-wx)

so you have the {exp(wx), exp(-wx)} basis and the {cosh(wx), sinh(wx)} basis

[next pulsar]

i think i understand

thanks

[dense jacinth]

Say there is a giveaway for 10 PS5s ( 10 winners). 24 people have entered. You decide to be sneaky and make 3 accounts to enter. What is your chance of winning?

[woeful pulsar]

are the 10 winners chosen to be distinct among the 27 entries?

[vale wigeon]

26

unless the count of 24 ppl entering doesnt include you

[glossy current]

Wouldn't it be $\frac{C^3_{10}}{C^{10}_{24}}$ 🤔

[ocean seal]

Darkness

[sage summit]

that would be the probability to win 3 times I think

[quick surge]

circumference = 2 x pi x r

88cm = 2 x 22/7 x r

88cm = 44/7 x r

what do i do next

[next hatch]

how do you get rid of 44/7 from the right side of the equation?

[quick surge]

thats the thing i donno

[dense jacinth]

24 entries total

[rocky siren]

find r

[quick surge]

i dont know how to remove the 44/7

[next hatch]

44/7 x r is a multiplication

[quick surge]

and the 88

[next hatch]

do the opposite to both sides

[quick surge]

wat

[next hatch]

division

[quick surge]

2cm = 7 x r

this?

[rocky siren]

r = (88 * 7)/44

[quick surge]

?????

[next hatch]

so basically try get 44r/7 to become 1r

88=44r/7

[quick surge]

wat

[next hatch]

44/7 x r is the same as 44/7 x r/1

[quick surge]

yes

[next hatch]

and how do you multiply fractions

[quick surge]

how

im confused

[next hatch]

44/7 x r/1 = (44 x r)/(1 x 7)

[quick surge]

your making it confusing

ok nvm radius is 14 cm

[next hatch]

okay look

[quick surge]

dont need anymore help

[next hatch]

do u know how to get to 14

[quick surge]

44r = 88 x 7

[next hatch]

yes

and then what

[quick surge]

r = 88 x 7 / 2 x 22

r = 14cm

[next hatch]

you can skip the 2x22 part and just divide by 44

[woeful pulsar]

24 + 3 of yours

[quick surge]

howww

[vale wigeon]

do you know how to find the volume of a cylinder?

[quick surge]

yes

volume = pi x r^2 x h

[vale wigeon]

don't use x for multiplication

but yes

[quick surge]

i dont wanna stick it together

its gonna be messy

[vale wigeon]

pi r^2 h

[quick surge]

yes

that

[vale wigeon]

spaces are a thing

anyway

now imagine 20 coins stacked on top of each other

[quick surge]

yes

[vale wigeon]

each coin is 2 mm thick, so how tall is the stack?

[quick surge]

20 x 2mm

40mm

[vale wigeon]

yes

[quick surge]

yes?

[vale wigeon]

and what's the diameter of the stack?

[quick surge]

28

mm

[vale wigeon]

28mm that's right

[quick surge]

omg

lol

radius is 28/2

14

ok

im dum

i know already

ty

[potent sinew]

is H <= G
if H = 2 Z ; G = Z
?

when Z is the group of intergers

[vale wigeon]

@potent sinew channel busy please move

[potent sinew]

sorry

[jaunty jasper]

Can someone help me draw the diagram for question 8

[vale wigeon]

,rccw

[vagrant rover]

Is this C?

Or is that not what relative minimum means

[long plank]

Guys

Anyone knows any rules or formulas for the verical and the horizontal asymptotes?

Struggling

At@

Atm

[ripe ginkgo]

Fun geometry puzzle for any smart helpers (but this is gonna take a pretty smart one to solve)

I have two points, p1 and p2 at (x1, y1, z1) and (x2, y2, z2)

I have rotation matrices R1 and R2 describing the orientation at each of those points

i extend a line of length l1 from p1 along the x axis at p1

and a line of length l2 from p2 along the x axis at p2

i then join p1 to p2 with a straight line, and the ends of the two lines with another straight line

forming a rectilinear panel

i would like to obtain the rotation matrix at a point p3 on the surface of this panel

[alpine sable]

ok

[ripe ginkgo]

i've tried just averaging R1 and R2 but that isn't correct

i know it's a tricky one, but i believe one of <@&286206848099549185> is smart enough to figure it out 😄

[ripe ginkgo]

feel free to ask any questions if you need me to elaborate

if that's what's holding you guys back

[ripe ginkgo]

man is everyone else in this server as dumb as me haha

[spare ingot]

Welp

[glossy current]

That's a bad screenshot

[brittle grove]

hello

is biscuit online

I need to ask a question

[glass lichen]

why do you need 1 specific person. . .?

[brittle grove]

because he don't judge me for asking dumb questions and he's very polite

[glass lichen]

Ok, but if you have a question, just post it

[brittle grove]

Two sides of a triangle are 12.8 cm and 9.6 cm. If corresponding height of 9.6 cm long side is 12 cm, then find the corresponding height of 12.8 cm long side?

[glass lichen]

set up the similar triangles and solve for the height

[brittle grove]

ok got it

I have to equate area

why doesn't my dense brain get the idea from itself.. why does it need an external stimulus

[glass lichen]

Nothing says they have the same area

[brittle grove]

but the answer i got is correct lol wth

[glass lichen]

Ok then you must've forgot to put something in the question

[brittle grove]

no I copied the whole question

what did you mean by solve for the height?

[alpine sable]

Can someone help me with this please?

[minor heath]

in sigma notation, you will get the sum of all possibilities of substituting all possible integers between the lower bound n (in the examples) and the upper bound at the upper part of the sigma

[ocean seal]

G3oG0dly

[stoic egret]

If the polynomial 2x3 + ax2 + 3x ? 5 and x3 + x2 ? 4x + a leave the same remainder when divided by x - 2, Find the value of a

[alpine sable]

So how would I get the 3+15+75... for example to sigma notation to match them?

[stoic egret]

can anyone help?

no?

[minor heath]

Just solve all the sigma notations but keep the terms. Then, see which matches the sequences below.

[minor heath]

Try to ask in a different channel. This one is occupied.

[stoic egret]

okay

[alpine sable]

alright thanks

+rep @minor heath

[ocean seal]

G3oG0dly

[distant socket]

hello id like the find the partial expansion of this fraction

ok wait the denominators the same

[safe island]

why is this flow non uniform?

[glossy current]

Yes then you multiply cross

A(s-0.2306)+B(s-0.2306)=9.55+1.28

[distant socket]

9.55+1.28 = A(s-0.2306) +B(s-0.0694)
10.83 = As-0.2306A + Bs- 0.0694B
10.83 = s(A+B) -0.2306A -0.0694B
s^1 : 0 = As+Bs
s^0 : 10.83 = -0.2306A -0.0694B
use simulatenous equation
A = -67.1836, B= 67.1836

i get this can you just check my working

idk how did my group mate get A = 3.8 5😂

[glossy current]

There's quicker way to solve it

[distant socket]

yeah i know

the coverup rule

but i dont quite get how it works

[glossy current]

o

Is it

You put (s-0.2306)=0

to find B

[distant socket]

yea i think its like that

what other methods were you thinking of

[glossy current]

I just use that method

Anyway

,ask -67.1836/(x-0.0694) + 67.1836/(x-0.2306)

[ocean seal]

Results provided by WolframAlpha

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

Requested by Darkness#5004

[glossy current]

,ask (9.55+1.28)/((x-0.0694)(x-0.2306))

[ocean seal]

Results provided by WolframAlpha

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

Requested by Darkness#5004

[glossy current]

They're the same

So you're correct

[distant socket]

oh alright!

thanks

[hardy sparrow]

in a cookie mix, we find molasses cookies, butter cookies, and oatmeal cookies in a ratio of 5 : 2 : 5. If a bag of the mix contains 80 oatmeal cookies, how many molasses cookies are there?

[glass lichen]

for every 5 oatmeal, you have 5 molasses

[karmic willow]

im new to pascals triangle and im unsure how i do the last 4 and and not sure if the ones i have are correct could anyone help me

[glass lichen]

Is that even a pascal's triangle. .?

[karmic willow]

its pascals triangles formula but i have to remake it to better fit this

[glass lichen]

how do you read the rows. .?

[karmic willow]

im not sure honestly i was following the teachers example but got lost when it came to the top right

i can send the teachers example if you want

[glass lichen]

I mean given I cant even read a 2nd row on what you posted, it's likely wrong

[glass lichen]

sure

[velvet pelican]

@glass lichen try rotating about 135 degrees clockwise

you can somewhat see pascals triangle

[glass lichen]

I see the 1st 2 rows, not even the 1 2 1 row

[karmic willow]

idk its a really weird way my teacher wants us to do it thats whats confusing me and she hasnt responded to my email yet either

[harsh acorn]

@karmic willow these questions can be found in the international math olympiads lol

[spare summit]

Help

[harsh acorn]

down one will be 255

[spare summit]

Me dumb

[harsh acorn]

up one will be 255+255

oh wait

[karmic willow]

ok thanks

[velvet pelican]

So you're just adding up the numbers on the vertex to the left and bottom

[harsh acorn]

you did wrong tho

[karmic willow]

where

[spare summit]

Do i ask another where

[harsh acorn]

it does not fit

608+255=255?

[rich basin]

It works over several levels too. 16 = 7 + 5 + 3 + 1

[karmic willow]

im not sure how i even got 608 there looking back at it

205*

[harsh acorn]

anyway

down one will be same

[velvet pelican]

that's actually quite a good way to solve those types of questions

[harsh acorn]

if u think a bit hard you will understand why it is same

i was struggling to understand why these questions was working like that lmao

[harsh acorn]

this is the only way to solve these types of questions lol

[karmic willow]

the math olympaids you were talking about does that have videos explaining each one

[harsh acorn]

think like 2+2=4
if u dont know how to add 2+2 you will count your fingers

question is like that

[harsh acorn]

yep there are

[karmic willow]

I will check that out

[harsh acorn]

https://www.youtube.com/watch?v=TfBYNTHx7J0&list=PLX3F0rfKmgbpEOpQ99mimknr1Slfa4mSB&index=6

[velvet pelican]

brute force seems slightly inefficient

[harsh acorn]

yep

i was trying to solve them as brute force

until

someone told me this method

these type of questions are everywere

and authors here saying that "only inteligent ones can solve this" lol

all you need to know is method

anyway

what these points mean there?

and how can i add them?

i see this first time in my life

[velvet pelican]

its repeated decimals

so 3.53535353535...

[harsh acorn]

ooh

[velvet pelican]

is just 3.53 with the dots

[harsh acorn]

we wrote these things as 3.(53) there lol

[velvet pelican]

and the other one is 2.018018018...

[harsh acorn]

how can i add them then?

will it remain same as classic numbers

[velvet pelican]

you convert them to fractions

[minor heath]

i guess turn them into fractions

[harsh acorn]

ooh

so 3.53 = 3 & 53/99

like that?

[minor heath]

yes

do the same thing for 2.018018...

[harsh acorn]

2 18/999

and common deminators

and add

okay get it

[minor heath]

yep then turn the fraction to decimal after adding ig

[brittle grove]

From any point inside an equilateral triangle, the length of perpendicular on the sides are a, b and c. Find the area of equilateral triangle.

[harsh acorn]

is there any shortcut to add them? (without calc) bcs common deminators are too big for this question

[brittle grove]

is this server taken?

[harsh acorn]

not server but channel is yes

$$\frac{2016}{999}+\frac{350}{99}$$

[ocean seal]

Hyl1s

[harsh acorn]

any shortcuts?

[karmic willow]

@harsh acorn thanks for the video and the help, it helped me understand much better

[brittle grove]

problem is solved?

[harsh acorn]

no

[brittle grove]

are u good in geometry

[harsh acorn]

yes

i think so

anyway

$$\frac{2016}{999}+\frac{350}{99}$$

[ocean seal]

Hyl1s

[harsh acorn]

is there any shortcuts

[rough spear]

no

[minor heath]

nope idk any shortcuts

[alpine sable]

@maiden hill

[maiden hill]

hepppp

[maiden hill]

ping ppl

i dont understand this

at all

[harsh acorn]

[maiden hill]

<@&268886789983436800>

[sly mantle]

mod pings aren't to be used for hw help

[maiden hill]

<@&681259688163147863>

[maiden hill]

oh

sorrry

but helppp

[sly mantle]

please don't spam your question

[minor heath]

this channel is occupied

[maiden hill]

i sent it twice 😐

[maiden hill]

wdym

[alpine sable]

<@&268886789983436800>

[minor heath]

read #❓how-to-get-help

[maiden hill]

ok

[harsh acorn]

[rough spear]

use lcms @harsh acorn

[alpine sable]

<@&268886789983436800>

[sly mantle]

knock it off

[rough spear]

are you looking for shortcuts or solutions

[harsh acorn]

what is it

[harsh acorn]

shortcut

[rough spear]

there isn't ny

any

[minor heath]

nope

[ocean seal]

G3oG0dly

[rough spear]

using lcms feels short enough

[sly mantle]

ok jmc is banned too

[velvet pelican]

ty

[minor heath]

then using the lcd of the simplified denominator and 99

[velvet pelican]

How about $3+\frac{535353}{999999}+2+\frac{018018}{999999}$

[harsh acorn]

,w \frac{2016}{999}+\frac{350}{99}

[ocean seal]

Results provided by WolframAlpha

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

Requested by Hyl1s#3863

Frosty

[rough spear]

brrrrr

[harsh acorn]

wow looks easier

but how did u do this

[minor heath]

i guess

[harsh acorn]

oh

i get it

[velvet pelican]

you get 5+ a repeating pattern

that you can easily put into decimal

[harsh acorn]

yep

thx so much lol

[velvet pelican]

yw

[ocean seal]

G3oG0dly

[harsh acorn]

yep

so guestion's infinity decimal was given by writing with points so i need to write it as points right?

if it was a test ofc :D

[velvet pelican]

yes i guess

[harsh acorn]

so i would write 5.5(over point)53371(over point)

[velvet pelican]

Yes

[brittle grove]

frosty can u help me

with geometry

From any point inside an equilateral triangle, the length of perpendicular on the sides are a, b and c. Find the area of equilateral triangle.

[inner storm]

Can someone help with this bc fuck chegg

[gray spruce]

can i ask a question now?

nvm

[waxen geode]

👋 There's a question I'm trying to reason out with regards to linear regression: "True or False: To use linear regression, 𝑌 must be normally distributed"

(simple linear model)
𝑌=𝛽0+𝛽1𝑋+𝜖

[dusk kernel]

Someone help meh

[waxen geode]

My knee jerk reaction is "true"; part of the criteria for data coming in is that the residuals needs to be IID which presumes it's normally distributed

But the "Y must be normally distributed" is to say the output must be normally distributed which in a practical sense it doesn't have to be? Y just an output dependent on inputs X, and I'm wondering if there are inputs X that can give a non-normally distributed output Y while still conforming to the model

[idle brook]

Did I do these right? Like I'm confused what infinity over 0 is, could its just be infinity?

[timid wind]

How many different pairs of positive whole numbers have a greatest common factor
of 4 and a lowest common multiple of 4620?

can someone help me with this

[muted raft]

ln(1)=0

ln(e)=1

[idle brook]

Thank you

[timid wind]

anybody pls

[timid wind]

<@&286206848099549185>

[muted raft]

consider writing tan(pix) as cot(pix) so then you have limit log(x)*cot(pi x). Now apply limit properties.

your final answer should be -infinity

[gray isle]

as x→0^+, tan(pi*x) → 0^+

[timid wind]

um ok

[distant epoch]

i've seen someone get the smallest value from two variables with just

def smallest(x, y):
    return (x, y)[x > y]

is there a terminology for this? and how do i extend this to three variables? four variables?

[muted raft]

what does that do? Is it returning the smallest value or the variable which is the smallest value?

[distant epoch]

returning the variable with the smallest value

[muted raft]

,w prime factors (4620/4)

[ocean seal]

Results provided by WolframAlpha

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

Requested by zslya#7821

[muted raft]

you could put the variables into a list, find the minimum value in the list and return the index. From this you will know which variable has the smallest value.

I don't know if there is a terminology for this however.

I think this should have 2^4 solutions? Correct me if I am wrong.

[distant epoch]

def smallest(x, y, z):
    return ((x, z)[z < x], (y, z)[z < y])[y < x]

figured it out for three variables

[muted raft]

Its gonna get messy soon though.

[distant epoch]

but idk how the heck you make it work for four

it's so brilliant

and i'm curious about it

[muted raft]

I don't know python syntax but I would just put them on a list and then return the index of smallest value

[distant epoch]

yeah, you can use min()

[muted raft]

Yeah you should only have 2^4 positive solutions @timid wind

[timid wind]

hey can you help me with a question

its a gcf lcm question

[glass cliff]

can i get like someone good at math to help me revise for my math gcse

[limpid spade]

just ask

[glass cliff]

give me a sec

expression's mainly how to simplify

[limpid spade]

show

[alpine sable]

I need help on a math problem I’m trying to find a critical value for t with a 99% confidence interval with a n that equals 20

[glass cliff]

i struggle to do it

[limpid spade]

is that a test

[glass cliff]

no my exam is in like 5 weeks and im fron ireland so school is finished for today

i do maths statistics

its homework for next week

[limpid spade]

let's begin with 3

2*

how would u simplify 2

[glass cliff]

1

[limpid spade]

?

[glossy current]

Look like a problem that I'd use calculator

[limpid spade]

[timid wind]

,w commands

[ocean seal]

Results provided by WolframAlpha

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

Requested by Its me#6174

[limpid spade]

#bots

[timid wind]

sry

[glossy current]

,ask factorize 448

[ocean seal]

Results provided by WolframAlpha

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

Requested by Darkness#5004

[limpid spade]

not factorize, but simplify

[glossy current]

Factorize is a way to do simplify problem tho

$\sqrt_{3}{448}=$

hm

How to write that i forgot

[muted raft]

$\sqrt[3]{448}$

[ocean seal]

zslya

[glossy current]

O thanks

[limpid spade]

4*112

o it's cube

[muted raft]

$\sqrt[3]{448} = \sqrt[3]{2^6 \cdot 7} = \sqrt[3]{2^6} \cdot \sqrt[3]{7}$

[ocean seal]

zslya

[muted raft]

[limpid spade]

nice

[glossy current]

Anyway yeah

[alpine sable]

Is the answer 590?

[vale wigeon]

yes

[alpine sable]

Thank you ^^

How would I sketch this?

[silent widget]

ive never seen something like this but im just curious, wouldnt those zeroes just fall off?

like F(z) = z^n

[alpine sable]

Hmmm I don't think so cuz then it wouldn't really be a 3d function

[silent widget]

but if its zero in 2 dimensions it would only change in 1d right?

[runic rain]

aren’t they all polynomials??

[alpine sable]

I mean. The input is in 3d so it would not be possible to point them in 1d

[alpine sable]

Nope. Polynomials only contain whole powers I think

[runic rain]

so it’s D?

[alpine sable]

D is not a polynomial

[runic rain]

why not

[muted raft]

exponent must be greater equal to 0

[alpine sable]

Yeah so whole numbers

[runic rain]

so it’s A?

[muted raft]

yes

[runic rain]

I said A, D, and E

but i think that’s wrong now lmao

[shrewd sable]

It can't be a negative integer

[runic rain]

It’s B, D, and E?

[shrewd sable]

The exponent can be zero, that's the constant term

[runic rain]

yup

like 5⁰= 1

[shrewd sable]

Why couldn't it be C?

[runic rain]

you can just simplify that.
2π² + 3π

[shrewd sable]

1. That doesn't have anything to do with it being a polynomial or not
2. That's not what coefficient means

[runic rain]

ohhhh coefficient is
3x

?

[glossy current]

π or √2 still make it I believe

[shrewd sable]

"can the coefficients be pi" and "is pi a polynomial" are different questions

[runic rain]

ohhh

gotcha

so B C D E

all except for A?

[shrewd sable]

The exponent can be zero

[runic rain]

oops

i thought it said can MB

C, D, and E?

[shrewd sable]

Yeah

[runic rain]

thank you!!

[lost violet]

If $X$ is a random variable with Poisson distribution and $P(X=2)=\frac{2}{3} P(X=1)$ find P(X=0) and P(X=3)

[ocean seal]

alef0

[frigid flare]

hello

can someone help?

what would the transformations be?

[flat yew]

anyone know?

[alpine sable]

On which interval is the function increasing? A) 44 to 48 seconds B) 48 to 52 seconds C) 52 to 56 seconds D) 70 to 72 seconds

I picked

D

If Im not correct, can someone please explain it to me

oops wrong image

[glass charm]

9.y =(x+3)^2

[alpine sable]

On which interval is the function increasing? A) 44 to 48 seconds B) 48 to 52 seconds C) 52 to 56 seconds D) 70 to 72 seconds

this questione

[glass charm]

For jason

[flat yew]

@glass charm whats number 11?

thx

[alpine sable]

can someone pls help me

[glass charm]

(x-2)^2-4

Jason

[flat yew]

@glass charm do u know 13?

[glass charm]

When you shift to the right just substract

[flat yew]

ok

[glass charm]

Helping to the left, add

Going

[flat yew]

oh ok

[alpine sable]

can u help me pls

[flat yew]

do u know number 13? im bad at this

@glass charm

[glass charm]

Not D

Cyber

70 to 72 , look at the graph

[alpine sable]

is it at the beginning?

[glass charm]

I would say B

[alpine sable]

hm

[glass charm]

-1/2x^2-2

[alpine sable]

theres another question within the same graph

On which interval is the function decreasing? A) 40 to 44 seconds B) 56 to 60 seconds C) 64 to 66 seconds D) 72 to 76 seconds

its about decreasing now

[glass charm]

Jason that s for you

Think

Cyber

[alpine sable]

kind of

I understand when the function is decreasing, but im not sure if im right

I think its D, because the function wave decreases around there

[cold bison]

If I have a rhombus that has every side length equal to √13. Then how can I find the rhombus height? (My brain stopped working)

[gray isle]

insufficient info

[cold bison]

I will try to search

[gray isle]

are you leaving out information?

or perhaps give the whole problem

[cold bison]

I will get the angels, I need some time

[unique spindle]

Ehm how do u do this?

[gray isle]

simplify, collect like terms

[unique spindle]

Did I make a mistake in my working out?

[gray isle]

mistakes everywhere

[unique spindle]

Ooof

Such as?

[gray isle]

from the very beginning

literally everything

[unique spindle]

I followed a video on how to do it and he did a similar question just as I did

Ayo hold up lemme try again

[gray isle]

major problems with your basic operations

don't rush

[unique spindle]

Okay gimme a sec ima try to fix it

Ima a do a similar one

Is this right

Ignore my circling

[gray isle]

this one is ok

[unique spindle]

Ah

oh I see 😂

[cold bison]

I got the angels and the lenght of (i) (h) (g) (f) are the √13

[modest furnace]

does anyone know any quadratics and could explain how to describe transformations happening in the following quadratic equation such as y = 0.4(x+1)^+45?

[alpine sable]

Ok so im solving for Rational functions

And when I solved for its Vertical Intercept, i got two answers which is +1 and -1

How do i know which one is false answer and which one is true

[loud mauve]

idk if im being dumb but you seem to have worked out the x intercept not y ? and there is no true answer, there are just two intercepts

it's a parabola where x crosses -1 and 1, and the y intercept is -1

[glass lichen]

,w graph x^2-1

[ocean seal]

Results provided by WolframAlpha

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

Requested by moshill1#9771

[glass lichen]

x^2-1=0 asks when the parabola crosses the x axis

[loud mauve]

^^

you seem to have worked out that it's -1 and 1 :) they're both true there

[gray isle]

assuming you started with
y = x^2 - 1
and by vertical intercept you mean y-intercept
you should've set x to 0 instead of y to 0

[pulsar fable]

when you start learning differential topology

is it normal to have this reaction:
https://www.youtube.com/watch?v=5Hqg1aMHm-Y

[loud mauve]

feel free to just say what the question is !

indeterminate, not enough info . also <@&268886789983436800>

[gray isle]

this question is quite inappropriate and I doubt any teacher would given it

[sly mantle]

👢

[fading zephyr]

thanks

[loud mauve]

ugh the question didnt have enough context :/ worst crime honestly

[normal remnant]

Is this channel free?

[tall wing]

huh

[sly mantle]

@pulsar fable keep offtopic content out of the help channels

[tall wing]

yes the channel is free

[normal remnant]

Okay

I am struggling with this pretty badly, i put it into desmos but that’s the only one that i could really do. I already eliminated b but I can’t do c and d

[steel zealot]

c and d

are correct

[gray isle]

what's your issue with c and d?

why did you eliminate b?

[steel zealot]

b is wrong

[gray isle]

do you understand the wording of the question and answer options?

[normal remnant]

Yes I do, I eliminated b because when you put them into desmos they face opposite directions

[shell tendon]

proof by desmos?

[normal remnant]

That’s what my math teacher tells us to do

[gray isle]

and

what's your issue with c and d?

[alpine sable]

hey guys, what is the answer to, A bag of candy has 15 candies without sugar and 10 candies with sugar.

Write a ratio to represent the candies in the bag?

[normal remnant]

My issue with is mostly with d now, both of them have a vertex of (0,0) according to desmos

[gray isle]

can you identify the axis of symmetry looking at the graph of a parabola?

[normal remnant]

Um not exactly no, I’m not 100% familiar with axis of symmetry

[alpine sable]

@gray isle

[normal remnant]

The most I know is that my teacher explains it as the line that goes down the middle that is usally dashed on exams.

[gray isle]

it might be helpful to look up axis of symmetry of a parabola.( it's also linked to the vertex of the parabola)

[alpine sable]

@gray isle yo

[normal remnant]

Okay

I’m gonna let you help drift now, thanks for helping

[gray isle]

what's your issue with setting up a ratio?

[alpine sable]

I just don't understand the question.

[gray isle]

which part specifically don't you understand about it?

[loud mauve]

the question is asking you to basically write comparison between how many candies are in each bag
so far example if i had 6 dice in a bag and 3 dice in another bag, the ratio would be 2:1, because there are double the dice in the first bag
it's asking you a similar sort of thing

[alpine sable]

oh okay

so @loud mauve, would the answer be 5:2?

@loud mauve

[gray isle]

you need to state what your ratio is supposed to represent

[alpine sable]

it's supposed to represent 15 and 10

[gray isle]

also they probably wanted a ratio of
with sugar to without sugar
or vice versa

just saying 5:2 doesn't tell me anything

[alpine sable]

I said the ratio is supposed to represent 15 and 10.

[gray isle]

that doesn't tell me much either

[alpine sable]

Candies with and without sugar

[gray isle]

then no

also you should be using to

the ratio of this to that is
this : that
simplify as required

[loud mauve]

@alpine sable
hi sorry omg i didnt see
ok so if you have 15 and 10 the only thing to divide them by would be 5, right ? so you'd get 3:2

[night pelican]

this might be a dumb question but 4 inbetween 4 is 4 right?

[loud mauve]

but for formatting you'd right smth like :

Sugar : no sugar
3 : 2

[loud mauve]

yes

[night pelican]

tank

[loud mauve]

yw ! its not dumb i spent a full 3 mins having a crisis abt whether or not numbers contain themselves a few years ago

[gray isle]

depends if inclusivity/exclusivity is implied

[polar coral]

If a quadratic function touches the x axis but doesn’t cross it, is it considered as a x intercept?

[alpine sable]

Okay makes sense

[alpine sable]

Plus you might not be the dumbest kid here which you are not, I am.

[polar coral]

Anybody know?

[loud mauve]

it's a very simple question so i think for the level they're at, it's a general sort of . "are they in any way different" question

[loud mauve]

yup ! it just would have 1 x intercept instead of the usual 2

[polar coral]

Ah okay.

[night pelican]

drift the only thing i know in my entire gcse course is standard deviation, i am pretty not large brain

and now i am just studying quartiles

[polar coral]

So just to make sure, if the vertex touches -3 on the x axis, but doesn’t cross it, it’s still considered to be a x intercept?

Something like that

[alpine sable]

oh well...atleast I don't have to feel bad abt myself.

[night pelican]

yes lmao

[alpine sable]

because I failed every freakin' math test in school.

or most of em'

[night pelican]

same with me but i am going to change that

hopefully

[loud mauve]

you guys are learning standard dev in your gcses now ?? wow i feel old . grandmother

[loud mauve]

yup !

[night pelican]

we have finished but i probably have the best understanding of sd

[polar coral]

Thank you!

[alpine sable]

no he is I'm not

[night pelican]

in my class

[alpine sable]

@night pelican want to be friends??

[night pelican]

if you want

[alpine sable]

sure ig

but idk if you want

[trim oracle]

in nat5 too lol

[night pelican]

im nat 5

also

[trim oracle]

also quick question, if my answer for something was Fc-t^2/4, would it be best to put the "Fc-t^2" in brackets just so it's clear to the marker?

for my fractions I tend to just do /4 instead of doing a line underneath then number under

that's what I mean, it's okay to have brackets?

[alpine sable]

Yeah that way is fine

[trim oracle]

ok great cus whenever I do the divide like at the top I have to use 2 lines lmao

[alpine sable]

Could also write it as (1/4)(Fc-t^2)

[jaunty light]

midsegment...

AB = BC and DE = EF?

[oak chasm]

@strong citrus What's the relationship of BE to AF and CD?

[alpine sable]

@loud mauve to make 3/2 as a fraction would be 1/2 right?

nvm

what

[eager pebble]

is [0,6] concave up?

or do linear equations not have convavity?

[alpine sable]

A mountain lion jumps to a height of 2.70 m when leaving the ground at an angle of 41.4°. What is its initial speed (in m/s) as it leaves the ground?

[alpine sable]

I forgot the equation u use to seprate horizontal and vertical components of velocity

[neon fog]

need time take right...or assume in 1s it jumped 2.7m

u have find u where ucost is horizontal velocity and usint is vertical velocity

then appply using projectile eqns

it would get solved in 3-4 steps i hope

[alpine sable]

Okay hold on

I thought it was just some cos and sin equations

I took physics but like forever ago

I cant remember how to compind the velocities tho

Wait hr right

Wtf

[delicate pendant]

I factored 6x^2+8y to 2(3x^2+4y) but the rest cant be factored.

[alpine sable]

How do i do that w/o time

[delicate pendant]

Im thinking one of the sides would be 3x^2+4y

[neon fog]

i think its difficult without time... i dont remember correctly ... its been some time i had physics..

[neon fog]

3x^2 +14y -x

[neon fog]

no factoring required... perimeter = sum of sides... subtract sum of given sides from perimeter to get 3rd side

[oak chasm]

@eager pebble It's not concave at all. Concave lenses are curved, for example.

[delicate pendant]

oh so combine like terms.

ok thank you.

[eager pebble]

can someone help w/ part b

[shell widget]

use product rule for P'(x)

@eager pebble

[long shard]

what method could i use to solve the equation -x^3 +3x^2-2.38x+0.464

the answers are approximately 1.85, 0.86 and 0.29 but i have no idea how to find this

[spark ibex]

Could someone help me with definite integrals?

i just learned it today and i am confused af

[rotund parcel]

Idk what to do next

<@&286206848099549185>

@glossy current

[alpine sable]

Just do the lowest common multiple of the equation you found in 6a

[rotund parcel]

Can you elaborate please

[vivid rune]

Can someone help me

[rotund parcel]

Ok ty

[alpine sable]

@vivid rune how about you?

[rotund parcel]

It said that was wrong ☹️

[alpine sable]

This is the only way to do that

[rotund parcel]

I typed in 30x+5y=28

[alpine sable]

-28

[rotund parcel]

That was wrong

[alpine sable]

Sand the whole task

Send*

[alpine sable]

Btw it's -28 not 28 look at the workout

[rotund parcel]

Ye that’s what I put in it was incorrect

[alpine sable]

Oh sorry I just made a mistake because I misread the x-y coordinates

My fault, wait

[rotund parcel]

Ok

[alpine sable]

30x+5y=-178

[rotund parcel]

Ty

[kind matrix]

there is 9000 lbs of jello
one man can swallow 47 lbs of jello in one bite every 29 seconds
how long will it take this man to eat all his jello

[delicate pendant]

I foiled (a-b)^2to (a-b)(a-b) and got a^2-ab-b^2. Im not sure what do do from here

[dusk smelt]

@delicate pendant (a-b)²=a²-2ab+b²

So 11-2(3)=5

[alpine sable]

someone told me that the formula seems to be incorrect and that x^{-2} must be (mean)^2, my question is so that x is the mean right? and for the (^2), does that mean we should half it? <@&286206848099549185>

[strong furnace]

x should be the class and the other term should be mu^{2} mu would be the mean , x^-2 means 1/x^2

[dawn ivy]

When converting from a smaller unit to a larger unit, what is true of the conversion factor?
It is less than 1.
It is more than 1.
It is 1.
It is 0.

[delicate pendant]

Im using the X method but I cant figure it out.

[delicate pendant]

<@&286206848099549185>

[alpine sable]

for the (^2), does that mean we should half it?

[strong furnace]

it means this $x^2$

[ocean seal]

nyann

[alpine sable]

i can help just repost in an unoccupied channel

[alpine sable]

what do i do since we dont half it

[strong furnace]

you are supposed to multiply it by itself

[spark ibex]

anybody know how to do definite integral

[alpine sable]

it asked me to find the mean first right
and i got a mean of 1.15
do i use that to answer the question above?

[strong furnace]

you are supposed to find this other term idk if it has a name sum of x^2*f first in the same way you found the mean and then substitute the values in the correct formula

[vivid rune]

Can someone help me with 5?

[glass lichen]

dont spam

[woeful pulsar]

I haven't seen inverse power method before

gotta read up

[fossil swift]

Do you guys help with formal logic here?

[woeful pulsar]

https://en.wikipedia.org/wiki/Inverse_iteration

so by choosing mu = -4, we get the closest eigenvalues to -4

do you use a method similar to presented in wikipedia?

what's conformation?

I'm not sure

@wintry temple can you confirm that the method presented in wikipedia is what you are using?

then idk how to verify

but assuming it's that method, you calculated the inverse of the wrong matrix

[modern vortex]

can someone help me with this?

[modern vortex]

<@&286206848099549185>

i still need help

[stray copper]

guys whats 30+39 need help

[glass lichen]

learn how to use a calculator.

[stray copper]

is it 68

wait no 3039

[oak chasm]

No, it's 3309.

[stray copper]

got it

thx

[oak chasm]

You put the tens places before the ones places.

[sudden finch]

So I found the slope of f(x) but now idk what to do or am I even on the right track💀

[glass lichen]

solve $f'(2)=g'(a)$

[ocean seal]

Mosh

[sudden finch]

Oohh okk thanks

So do I need the slope?

[glossy current]

u know how to find the tangent line right

[ocean seal]

Darkness

[sudden finch]

How do I find g’(a) 😓

[glossy current]

you just find g'(x) then replace a there

But first find that tangent line first

[sudden finch]

I got a slope of 4/5x

And -8/5 for b

f(x)=4/5x+ln(5)-8/5

[glass lichen]

why are you over complicating it?

[sudden finch]

im so confused😭

[glass lichen]

there's no need for the actual tangent line @glossy current

[glass lichen]

just do this

[tame hound]

can someone help me with this?