help-0

[upbeat helm]

pretty sure yes

im using the circle theorem Angle Subtended by an arc in the same segment are equal

a = 180 -66 so 114, b = 180 - (66 + 44) so its 70?

[gray isle]

yeh

[upbeat helm]

i was confuse cause at first glance there seemed to be no correlation

[pliant oracle]

12 + 14 × 3 = 54

is this right?

[upbeat helm]

calculators exist

but yes

[pliant oracle]

I know, but I just want to confirm

Thanks

[upbeat helm]

why would a calculator be wrong?

nvm doesnt matter

gl in what ur doing lol

[upbeat helm]

unless u making ur own

[pliant oracle]

My friend is saying the calculator was wrong, I said I was right but he didn't want to believe

[fickle dock]

Hey, I'm trying to solve this integration problem using integration by parts, would you guys mind pointing me in the right direction? Whatever I set my u and v' to, I always seem to end up going in a loop

[gray isle]

why are you bothering to manipulate the cos(6t) like that?

[fickle dock]

I tried doing it without that as well

and always ended up with something similar to the original except with sin(6t) instead of cos(6t), so I tried doing this

[gray isle]

sometimes ibp integrals are like that

considering that your original integral has the value
I
and I pops up again later in your iterations

rearrange and solve for I

[fickle dock]

okay so let me try going the other route then where I don't manupulate the cos(6t) and see what I can rearrange

[granite berry]

Can someone confirm whether the answers a. infinite b. infinite c. infinite d. 1 are correct?

[alpine sable]

Is anyone on

[fickle dock]

so I've tried this, which is what I think you were referring to

[stable orbit]

All options of q2 seem to be wrong can someone help

[clear apex]

i suck at vectors

sum1 help

[wispy olive]

I see. Can you do for like a whole number into a number like that?

[silver current]

can anybody check, my answer's A

[silver current]

into a square root you mean?

like number 6 can be written as √36

[wispy olive]

I know.

I meant.

Like divide 2√6 by 4√7.

And multiply like 2√7 by 8.

[silver current]

Divide 2 by 4

and √6 by √7.

√6/√7 = √(6/7)

[silver current]

The whole thing then would be equal to 1/2* √(6/7)

2√7 * 8 = 2* √7 * 8 = 16 * √7 = 16√7

Multiply/divide the Real Numbers with Real and square roots with square roots

[wispy olive]

I see.

Thanks!

What if it was 2√6 * 36.

[silver current]

Easy

2* 36 *√6

=

72√6

I'll make it easier to get started, Consider √6 as x
2x * 36 = 72x

Its the same thing

If you get stuck try to think roots as a variable and you'll get the hang of it

[wispy olive]

I see.

[dusky notch]

Hey guys so the first part of these problems with the adding and subtracting of vectors I was wondering if I got this correct because I'm a little lost on whether im doing it right. I'm also not sure about #2 part c since i just got vector u in the previous problem and that wasn't = to 1.

[wispy olive]

Thanks @silver current .

[silver current]

No problem

[wintry vortex]

Anyone mind helping me wrap my head around this?

[ancient saddle]

Hello, vectors are not defined by the point they are "pointing", they are defined by their components X and Y, horizontal component and vertical component

[fast mantle]

could someone confirm if the answer for this is 67??

[ancient saddle]

take this vector, for example

[glass lichen]

Technically, the physics arrow system is a vector space, so yes, some vectors are defined by where they point

• and * are well defined and meet the requirements imposed by vector spaces, so by definition it is a R-vector space

[ancient saddle]

By the point where they point I mean the point where the vector's head is

[glass lichen]

Oh right, I see what you mean now

[ancient saddle]

As far as I know, for functions that receive a point and gives a vector as a result, the vector head is not at the point given

[glass lichen]

Yes the components of the vectors are wrong, my bad lol

[ancient saddle]

Anyway, you made a good point here. Some vector are defined by the point they are pointing, this are the vectors whose tail is at (0,0)

[glass lichen]

Yes, position vectors are R^n vectors whose tail is at O

[ancient saddle]

I think you should better review your class chapter because the vectors you've drawn are not well defined. Hope what I wrote earlier helps. Also, for #2 C, they don't mean that the vector should be equal to "1", they mean that it's length must be equal to 1.

[wintry vortex]

since there isnt something telling me to round or the ability to put a repeating number on the answer i think my anwer is wrong

but I dont know what im doing wrong to get the wrong answer

[pastel gale]

can someone help me out please ive gotten like three different answers

[vague coral]

(f o g o h)(x) = f(g(h(x)))

[pastel gale]

thats what ive been using but i get lost when i try to plug them in

[vague coral]

first g(h(x))

you have g(x) = x-5

what is g(h(x)) ?

[wintry vortex]

both my answers came up wrong

I redid my math, not sure where i went wrong

i changed the -34 to -35 when i checked on calc to see if my problem was true

that was a written typo =p

[fair dome]

I don't know why but I can't get myself to understand those

[alpine sable]

this is computer science lol

time complexity

[fair dome]

Its for sorting algorithms

It should not be deeply correlated with IT

[wintry vortex]

guess ill hop to a different room

[alpine sable]

https://youtu.be/gR6nycuZKlM (if you have time to watch this, it will most likely clear all of your doubts)

[fair dome]

Thx

[alpine sable]

$(84 + x)(35 + x) = 2 \times 84 \times 35$

[ocean seal]

ZED_118

[wintry vortex]

thats what i did

then I foiled and factored

[fair dome]

Cant u suppress the 84 and the 35?

(I'm not that good at math so sorry if I sasy smth wrong)

[alpine sable]

,w expand (84 + x)(35 + x)

[ocean seal]

Results provided by WolframAlpha

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

Requested by ZED_118#2675

[fair dome]

I mean, if u divide the first term by 84 and the second term with 84 so u suppress both of them, then u do the same thing with the 35

So only the x^2 remains

[alpine sable]

$x^2 + 119x - 2940 = 0$

[ocean seal]

ZED_118

[alpine sable]

,w factorise x^2 + 119x - 2940 = 0

[ocean seal]

Results provided by WolframAlpha

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

Requested by ZED_118#2675

[fair dome]

Ok fine theres someone more clever than me

[wintry vortex]

Did i factor wrong?

[oak chasm]

How did you factor it?

[wintry vortex]

honestly mathway lol.

[oak chasm]

Generally, when you change a polynomial, the factors change.

[gray isle]

if we're gonna continue here, the issue is the pretty much very first step before any factoring

start again from
$$(84+x)(35+x) = 5880$$

[ocean seal]

ℝamonov

[pastel gale]

(,: is anyone available to help me with this, i really have no idea

[gray isle]

continue manipulation into general form

[wintry vortex]

https://tenor.com/view/disappointed-face-palm-seriously-exasperated-gif-7304550

i see it

[flat pecan]

is this actually you from cruxis

always been curious

[round hawk]

can someone please help me with this integration problem

I can’t find the proper method to solve it

[ionic jewel]

integration by parts looks like it might work

maybe two of them

[round hawk]

No I tried integration by parts but it didn’t work

It’s kinda like a loop

[alpine sable]

Maybe you wrongly put u and dv
Btw you need substitution first

√x = t

[vague coral]

that will go nowhere

[round hawk]

Substitution doesn’t work either

It even makes it more complicated

[full plover]

well it doesn't have an elementary antiderivative

[round hawk]

Uhh yeah I guess

[alpine sable]

$$\sqrt{x} = t$$
$$dx = 2tdt$$
Now integral will look like
$$16\int t² e^t dt$$
Now let me tell you a general integral comes from integration by parts:
$$\int t^m e^t dt = e^t\qty[t^m - mt^{m-1} + m(m-1)t^{m-2}\dots _{\text{until you get constant}}]$$

@round hawk

[west bronze]

wolfram alpha can solve it and uses substitution for the first step

I'm too lazy to do the rest

[alpine sable]

Yeah that's what I said

[round hawk]

How do you get dx=2tdt

I thought the derivative of sqrt x is 1/(2*sqrtx)

So isn’t it dx= 1/(2t)*dt

[alpine sable]

$$\sqrt{x} = t$$
$$\dv{\sqrt{x}}{t} = 1$$
$$\cfrac {dx}{2\sqrt{x}} = dt$$
$$dx = 2\sqrt{x} dt$$

[round hawk]

Ohh I think I got it!

Thank you so much!

[alpine sable]

np

[remote slate]

hi does anyone know the trigonometric function of this graph ?

[alpine sable]

Secx

[sour hemlock]

https://gyazo.com/24dfb63ac9b7d90878a0d0d482200d5f

what else?

[alpine sable]

Its a real number

[sour hemlock]

thank you

[shrewd siren]

hello i need help

f(x)=(x^2)+10
((f(t))^2)+7=?

i literally can't find anything about the matter online

[pliant oracle]

f(t) = t^2 + 10, so plug that in to (f(t))^2 + 7 (and simplify)

[shrewd siren]

i added an extra step in there

thanks

[sour hemlock]

https://gyazo.com/ecb4d806eb63a572706a9ae523e84394

Is this correct?

I was absent the week i learned set of numbers and still dont really understand them

[glass lichen]

do you count w/ sqrt(2)?

[sour hemlock]

were you talk to the person above me

[glass lichen]

I asked you

[sour hemlock]

oh

um

[glass lichen]

cause... your question has to do with sqrt(2)...

[sour hemlock]

yes

but

[glass lichen]

really?

[sour hemlock]

idk wat tat means

tbh

[glass lichen]

You go 1, sqrt(2), 2, 3, 4, etc?

[sour hemlock]

no

[glass lichen]

so then it's not a counting, or natural, number

$\mathbb{N}={1,2,3,...}$ are the natural numbers

[ocean seal]

Mosh

[sour hemlock]

wait my question changed its negetive square root of 12

[glass lichen]

yeah same answer as -sqrt(2)

anyway, it's not in N, is it a whole number?

[sour hemlock]

i need to solve it right

calculate what the negetive square root of 12 is

[glass lichen]

I mean...

,w -sqrt(12) decimal

[ocean seal]

Results provided by WolframAlpha

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

Requested by moshill1#9771

[sour hemlock]

thats a lot of decimals

[glass lichen]

yes, so you can clearly tell it isnt an integer either

[sour hemlock]

So if it was like

10

or 10.7

it would be a integer?

[glass lichen]

10.7 is rational, not an integer

[jovial wave]

10 would

[glass lichen]

integers dont have any decimals

[sour hemlock]

OH

[glass lichen]

aside from trivial 0's

10.0 is an integer, cause the .0 is trivial

[sour hemlock]

yes

smarts

[glass lichen]

so then it could be a rational, however it cant be expressed as a ratio of 2 integers, so it cant be rational

[sour hemlock]

so its irrational?

[glass lichen]

yes, and real

[sour hemlock]

ok so, its not a while number cuz yea its not a wole, not a integer because it as decimals, and not a rational because its irrational

wole

[glass lichen]

yes

[sour hemlock]

whole not whike

[glass lichen]

and it's a real number

so $-\sqrt{12}\in\bar{\mathbb{Q}},\mathbb{R}$

[ocean seal]

Mosh

[sour hemlock]

https://gyazo.com/67dd5faeec78a5fc6c45273a5c2e863e

[glass lichen]

it isnt natural

[sour hemlock]

ty

[glass lichen]

We discussed it wasnt natural already.

[sour hemlock]

oh i think i misclicked it

@glass lichen ty for the explanation and help\

[jovial wave]

Don't question why I don't know 1 and 2 I just suck at geometry and need help on it

[daring roost]

For the first question

The area of what?

Or are they asking you to find the volume.

[jovial wave]

The area of the shape

[daring roost]

It looks like a 3D shape.

[jovial wave]

It's not

[daring roost]

Ok then

Cut off the sides at the square

[jovial wave]

The red line makes it easier because it's flat

[daring roost]

It will then be 9 cm each side

9 x9 is equal 81

81inches squared for the square

[jovial wave]

Wait what square

I'm not seeing a square

[daring roost]

You cut it off to get a square

[jovial wave]

I'm confused

[daring roost]

You cut it off to make it a square

The shape, there is a square once you cut off the other bit

[jovial wave]

But the red lines isn't apart of the shape

Its the black lines that is

[daring roost]

Ok that was not clear

It’s a pallelogram

All sides are opposite are equal

[jovial wave]

Yes

[daring roost]

Use the pallaleogram area formula.

[jovial wave]

Ok

So x times x = x

Right?

[daring roost]

X^2

@jovial wave did you learn the formulas for the areas of shapes

[jovial wave]

Yes it's been awhile

[daring roost]

It’s just base times height

[jovial wave]

That's what I meant here

[daring roost]

This is wrong tho

[jovial wave]

Base times height it just takes longer

[daring roost]

It should be x times y = z

[jovial wave]

Whatever

[wary stream]

This is incorrect

[jovial wave]

So x times y = z

[daring roost]

Yes

[jovial wave]

Wait what

[daring roost]

@wary stream the area for a pallalelogram is bxh

[wary stream]

Yes, that is the formula

[jovial wave]

9 times 10.7

Is the equation then

Right

[daring roost]

Then what is wrong about it.

[wary stream]

You mean expression?

[jovial wave]

Yes

[wary stream]

It's what korbin said

[jovial wave]

Yes

I got it

[wary stream]

9 times 10.7

[jovial wave]

Ok how would u do 2 then

[wary stream]

Not 22.1 times 10.7

[daring roost]

Just a formula

[jovial wave]

So the answer is 96.3 in

[wary stream]

Sounds right

[jovial wave]

K

[daring roost]

Probably just me being dumb because it’s 23:44

[wary stream]

Units are incorrect though

[daring roost]

Because the height was 9

[jovial wave]

How

It says in

[daring roost]

Inches squared

[wary stream]

Area is not in inches

[daring roost]

@jovial wave for number 2 just use a basic formula

[jovial wave]

So if it's squared it's 9,273.69

[wary stream]

No

[daring roost]

@jovial wave are you in pre algebra

[jovial wave]

Omg

[jovial wave]

No

Algebra 1

:(

[alpine sable]

GUTS

GUYS

I NEED HELP FAST

[daring roost]

What is needed.

Just ask away here @alpine sable

[wary stream]

$$(9 \text{inches} \times 10.7 \text{inches} ) = 96.3 (inches)^2$$

[jovial wave]

K

[daring roost]

Because inches x inches is inch squared

[remote slate]

could aanyon help with this

[ocean seal]

dldh06

[daring roost]

What is csc

[remote slate]

a trig idetity

[wary stream]

No, ask in a not busy channel

[daring roost]

Wouldn’t K just be 0

[alpine sable]

Its taking forever to send

[jovial wave]

So two is the same formula

[daring roost]

Wouldn’t K just be 0 @remote slate

[alpine sable]

That’s what I need help with

[remote slate]

thts what i was thinking

but woulndt it b too eaas

[jovial wave]

I thought u couldn't help on a quiz or test?

[wary stream]

No, because it's a trapezoid

[daring roost]

That’s not how Math works.

[alpine sable]

Wait can you not?

[daring roost]

I can help

[alpine sable]

Also it’s like homework for us

[daring roost]

@alpine sable first

[alpine sable]

You can take it as many times as you want

[daring roost]

We need a sequence

1,3,9

It’s a square sequence

[jovial wave]

So split it into two triangles and the do the triangle formula

[wary stream]

No, there's a trapezoid formula

[daring roost]

I think

Let me check

[jovial wave]

Idk my teacher said to do this

[alpine sable]

Wait. Would it be 27 bc you’re multiplying by 3?

[daring roost]

No it’s not 25

It’s 1,3,9,27

We need do find the NTH TERM

[alpine sable]

Wait so in the fifth figure how many black triangles will there be?

[daring roost]

So 27 X 3

[wary stream]

Also, all the extra people, who is not korbin, so @alpine sable @daring roost do this in a different channel

[daring roost]

Because each term in the sequence is multiplying the previous number by 3 @alpine sable

Answer is 81.

Do the same with whites.

[wary stream]

You can do that

[daring roost]

0,1,3,9

[alpine sable]

Ok! And how do I do the n

[daring roost]

I can’t explain now since it’s hard to.

But it’s an expression where n(this number changes according to the place of the term to the sequence)

[alpine sable]

Wait so the white would be 36 right? Since there is 12 before?

[daring roost]

And this expression for example could be let’s say n

Let me explain first.

So the expression n

The sequence for n

Would be 1,2,3,4,5

Because n is the number in the sequence

So n become 2 in the second number in the sequence

So let’s get back on track.

0,1,4,12

Is the sequence so far

[wary stream]

That's incorrect

[daring roost]

Oh it’s 4

[wary stream]

Doesn't start with zero

You shifted the sequence

[daring roost]

The first triangle has no white squares

How did I shift it?

[wary stream]

Thought you were doing the black triangles

[alpine sable]

Because I think it’s asking about the black triangles

[daring roost]

We already did those.

[alpine sable]

For n

[daring roost]

We already cracked the sequence

[alpine sable]

We don’t need to know the white triangles for n just the black ones

[daring roost]

Oh ok

So do you want me to explain?

[alpine sable]

Wait so what would it be for the black ones?

[alpine sable]

That’s for the fifth figure

[daring roost]

Should I explain?

Yes

[alpine sable]

We need it for n

Not just the fifth

[daring roost]

So you want the expression?

[alpine sable]

Yes

[daring roost]

Ok let me think

[alpine sable]

For how to find it for n

[daring roost]

Ok so it is

[wary stream]

No

No

[daring roost]

3 to the power of n times 1/3

[wary stream]

It's just $$3^n$$

[ocean seal]

dldh06

[alpine sable]

I don’t think there is suppose to be a fraction

[wary stream]

No extra stuff

[alpine sable]

Wait actually?

Ok I’m trusting you

[daring roost]

It’s 23:59 I’m tired man

@wary stream

No I’m correct

It’s 1/3 X 3^n

[wary stream]

No

It's not

[daring roost]

You are wrong

[wary stream]

If you start a zero, it's $$3^n $$

[daring roost]

The sequence is 1,3,9,27,81

[ocean seal]

dldh06

[daring roost]

It doesent start at 0

[wary stream]

You don't know that

It doesn't say where it starts

[daring roost]

It’s the black one

The first triangle is black

So it’s counts as 1

[ripe thunder]

Yap he is right

[daring roost]

Who me or the @wary stream person?

[ripe thunder]

You

[daring roost]

Good.

[ripe thunder]

Yes.

[wary stream]

It depends, people do start at zero

[daring roost]

Then they are wrong.

Maths doesen’t have multiple answers

Unless it’s like a quadratic

[wary stream]

Yes, it can

[daring roost]

But it’s still technically 1 answer

But you cant just start at 0 if you feel like it

[wary stream]

You can have different solutions based on the starting point

[daring roost]

But the starting point is set in stone

[wary stream]

Not always

[daring roost]

There isn’t really any discussion because the whole triangle is black so it’s a black triangle

[wary stream]

Unless it's stated what the starting value is

[ripe thunder]

Mhhh nop actually if its the sale problem it will converge to the same answer

[wary stream]

Also, these are triangles

Programming in certain languages, you either start at 0 or 1

[daring roost]

In python it’s default to start at 0

Unless you specify where the index starts

Even if it started at 0

You are still wrong @wary stream

Because 3 to the power of 5 is 243

Not 81

If 243 is divided by 3 it is 81

[wary stream]

If you started at 0 in the sequence, 3^4 is 81

[daring roost]

Bro

If you start at 0 that is the 1st term in the sequence

It counts as the first term

[alpine sable]

How can you tell if something is true or false

[daring roost]

It specifically asks for the 5th triangle

[wary stream]

Do you know about conjunction and disjunction?

[alpine sable]

Yes

[wary stream]

What is $$\wedge$$ and $$\lor$$ mean?

[ocean seal]

dldh06

[ripe thunder]

One means "and" while the other means "or"

I think

[wary stream]

I wasn't taking comments from the peanut gallery

I was asking @alpine sable

[ripe thunder]

Oh

Mb

[alpine sable]

Is anyone else still here?

Also sorry it turned into that huge debate I just meant to ask a question 😂

can someone help me with division? im having struggles, i dont understand it.

[daring roost]

Ask away.

[wary stream]

What part with division?

[daring roost]

Division is just an order of operation.

You just need a calculator

[alpine sable]

how does it work tho

[daring roost]

So you have a number let’s say 9

We want to divide it by 3

How many 3s would go into 9

3? Right?

[wary stream]

Division is a glorified method of subtraction

[daring roost]

So 9/3 is 3

[alpine sable]

oh

you explained it easier than my teacher did😟

[daring roost]

Have you learnt about fractions yet?

[wary stream]

Another way to think about it, with that example, how many times would you subtract 3 from 9 until you reach 0

[alpine sable]

yea

[daring roost]

A fraction is essentially the top divided by the bottom

[wary stream]

9 - 3 = 6, (first time)
6 - 3 = 3 (second time)
3 - 3 = 0 (third time)
So 9 divided by 3 equals 3

[daring roost]

I wouldn’t think about it that way.

It just makes it more complicated

[wary stream]

No it doesn't

[vestal aspen]

I have a question, so would (2/3) with a negative 2 exponent be 8/27 or 54?

[wary stream]

$$(\frac{2}{3})^{-2}$$?

[ocean seal]

dldh06

[daring roost]

Negative exponent is essentially 1 over the top

[wary stream]

Because neither

[daring roost]

Then the bottom is non negative

So you could just write a 1 at the top and it would be correct

Or you could use the square root rule

With the radicals

[misty mortar]

What is a least upper bound?

[wary stream]

You can use words like reciprocal too

[vestal aspen]

1 at the top of what?

[daring roost]

Fraction.

[vestal aspen]

ok

[daring roost]

1/2/3^-2

You just make 1 the numerator

Then the 2/3 the denominator

[wary stream]

Format this better

[daring roost]

This time with a positive exponent

[daring roost]

Wdym

[wary stream]

Order of operations reads that as 1/2/(3^-2)

Which is not the problem asked

[vestal aspen]

Tell me what the answer is and then I could see what you did to find it

If it’s 1/2/3 to the negative 2 power wouldn’t it just be 8/27?

[wary stream]

No, we don't tell answers

[vestal aspen]

Oh ok

[wary stream]

And no, the answer you have is incorrect

[daring roost]

Just use a calculator

[vestal aspen]

kk

[daring roost]

I recommend symbolab.com

[wary stream]

Stop, that isn't the proper way to teach

[daring roost]

@vestal aspen it gives steps too

[vestal aspen]

alright I’ll try it thanks for the help guys

[daring roost]

Always remember the laws of exponents

@vestal aspen

[north zenith]

hi, can someone explain what happened here?

[daring roost]

This is very important

[north zenith]

sorry im a math newbie ^_^

[alpine sable]

hey all

how can i solve a problem like 7a

[daring roost]

4x^2+8xy+y^2

Over xy

[north zenith]

How

[daring roost]

You need to expand the brackets

With the indices

Then X 4

[north zenith]

but (x+y)^2 is not expandable

wait

(x+y)^2 is expandable?

I never knew holy shit

🤦

[daring roost]

Bro it is

[north zenith]

yeah sorry for

spreading my stupidity

and thanks for help

peace

[daring roost]

No problem.

[north zenith]

actually

I forgot

😐

i took it in class before

but i took it as (x+y)(x+y)

maybe thats why

[wary stream]

Yes, this is correct $$(x+y)^2 = (x+y)(x+y)$$

[ocean seal]

dldh06

[alpine sable]

also, that can be simplified to $x^2+2xy+y^2$

[ocean seal]

Shaky

[ionic jewel]

expanded*

[alpine sable]

Is there a simple way to do this or is it just listing the possibilities?

[tight locust]

raise 3 to the power of the expression on both sides

[modern crystal]

anyone available?

[alpine sable]

I need help too

[lusty quartz]

what do you need help

I can try

[alpine sable]

is this a second degree or 3rd dregree polynomial

[glass lichen]

degree of the term is 3, so degree of the whole poly is 3

[rose parcel]

can someone explain something to me

[alpine sable]

bc y is equal to y^1 right?

[rose parcel]

not work related

[alpine sable]

so you would add 2 plus 1

?

[glass lichen]

yes

[alpine sable]

okii tysm

[rose parcel]

i've been experimenting with x^1/n

[glass lichen]

x^(1/n)

but yeah

[rose parcel]

yes

as it gets larger

as n gets larger

the graph of x^(1/n)

gets steeper

and steeper

right

i put in

[glass lichen]

no

[rose parcel]

x^(1/100000000)

[glass lichen]

as n goes to infinity, 1/n goes to 0, so x^(1/n) tends to x^0 which is 1

[rose parcel]

with a lot of zeros

so i found the upper bound then

that desmos does for this particular number

[glass lichen]

yes

[rose parcel]

darn it

it is

2:30am

[alpine sable]

Can someone help me plz. I’m on my last question

[rose parcel]

sure lol

what level is this

[alpine sable]

I’m a sophomore in college but I’m doing a class to teach younger kids so I would guess both? I don’t really know

[rose parcel]

oh okay

[alpine sable]

I hadn’t really ever seen this before tho

[rose parcel]

hit me

[alpine sable]

It’s sending my wifi is just slow

I’ve been doing this homework for 3 hours and I’m finally on the last question 😂😂

[rose parcel]

so you're doing the modulus function?

[alpine sable]

I would guess yes

That sounds familiar

Hello?

[rose parcel]

hello

[alpine sable]

Oh okay. So how would I do this?

[rose parcel]

sorry just reading through

[alpine sable]

Ohhh ok

[rose parcel]

is it the 'converse' part that you are confused with

[alpine sable]

Idk where I’m confused honestly 😂

Because all of them sound correct

[rose parcel]

uhm

so basically

what it means by converse right

in logic

for example

the statement ' if q then p' right

the converse of that statement would be ' if p then q'

so if the statement is true but the converse is not

[alpine sable]

Wait. Can you tell me what I should pick for each question? Then I can see and figure it out and like why it’s that answer

Ok question am I correct x² - 7x - 4 = 2(7x-2) right?

[rose parcel]

use another question room please

[alpine sable]

Me?

[rose parcel]

no this guy lol

[alpine sable]

Ohhh

[rose parcel]

i apologise

[alpine sable]

So what would I pick for each one and then I will just look and see why that one is correct

[rose parcel]

okay so for A

sorry its a lot to read

duck find somewhere else please this room is taken temporarily

[alpine sable]

That’s fine! Take your time.

[rose parcel]

it is very late in the united kingdom 🙂

[tulip pier]

Sorry

[rose parcel]

dw about it

so the first one

[next mural]

Oops.

[rose parcel]

lol

[alpine sable]

Wait so what’s the first one?

[rose parcel]

the maths i do is quite different to this

i'm just trying to figure out what they mean

i see why this is confusing

[glass lichen]

I mean, first rule out any with false statements for 1

[rose parcel]

true

both statements have to be true

and their converses

[glass lichen]

for example, option A is clearly bullshit, cause it says 5/x=0

[rose parcel]

yeah

dividing by zero is a nono

[alpine sable]

I don’t think c is right either

[glass lichen]

yes, C is wrong

[rose parcel]

ye

[alpine sable]

I think it might be D

[glass lichen]

yes

all 4 statements in D are T

[rose parcel]

B is wrong too

[alpine sable]

Okay. Then is B, b?

Because the first part is right but not the divide by 0

[glass lichen]

B has a false implication and false converse

[alpine sable]

Hmmm

So A?

[rose parcel]

i think i finally get it

so for an if then statement

[glass lichen]

no

A has true implications and converses

[rose parcel]

if it says, 'if x = 4 then 2x = 8'

that is the regular statement

[alpine sable]

Wait so c or d??

[rose parcel]

the converse to that statement

is

[glass lichen]

well yeah

cause you ruled out B and A

[rose parcel]

if 2x = 8 then x =4

[alpine sable]

Oh I meant is it c or d

[glass lichen]

Yes...

cause you ruled out B and A...

[alpine sable]

I mean it the answer c or is the answer d

I think it’s d

[rose parcel]

c statement is false

[alpine sable]

So it’s d

[rose parcel]

if x is an integer it doesnt have to be 2

yeah

but i think its important to understand the converse statement

and view it like that

[alpine sable]

Then c I think is also d

[rose parcel]

https://cdn.discordapp.com/attachments/490557019623915520/880987811711430686/image1.jpg

[glass lichen]

If it has bullshit math, it's false

so c isnt D

[rose parcel]

maths* 🙂

[alpine sable]

Then c?

And I think we say math in the US

[glass lichen]

stop guessing

[alpine sable]

Well idk how else to get the answer 😂

[glass lichen]

Actually try...?

[rose parcel]

understand the maths

do you know what the modulus function does?

|x|

[alpine sable]

It’s B

[glass lichen]

why?

[alpine sable]

Not guessing this time

Bc both are correct

[rose parcel]

tell us whyt

[glass lichen]

both what?

[rose parcel]

explain

[alpine sable]

The statement and the converse

[glass lichen]

yes

[alpine sable]

Like both of the things in it

[glass lichen]

an IFF is true when both directions are true

[alpine sable]

I think the last one is A because it has a weird math thing in it

So it is false

[rose parcel]

okay

without any input from us

[alpine sable]

Nooooo

[rose parcel]

for d

no

you have to do it on ur own

[alpine sable]

I think d is right

[rose parcel]

we will catch u if u make a mistake

[alpine sable]

99% sure

[rose parcel]

just explain to us on the chat

why each option is valid or invalid

and we will be happy lol

[alpine sable]

Because it is asking for which is false and you can’t divide by 0 so it has to be false

Correct?

[rose parcel]

but it says that it has to be false right

for the last one

[alpine sable]

Yea

And you can’t divide by 0

So it’s automatically false

[rose parcel]

mhm

both statements gotta be false

why is the first one false

[alpine sable]

Wait

It’s not

Dang it

[rose parcel]

it is..

[alpine sable]

But x to the third is 27…..

So it’s true

[rose parcel]

no

but x

is 3

if and only if x^3

which isnt true

[alpine sable]

Ohhhhh.

So I was right?

[rose parcel]

there is infinate ways of x being 3

[alpine sable]

I’m about to submit my entire quiz thats 34 questions. I hope I at least get a B to an A if not I’m gonna cry bc I’ve spent 4 hours on this

I GOT AN 86%

IM OK WITH THAT

THATS ALMOST AN A

We missed the last one

The one we were just talking about

[rose parcel]

wat the heck

[alpine sable]

It was c

[rose parcel]

yeah i just looked at the other options

...

uh

i would argue

that none of them are right lol

but c is the worst of all

i would agree with that

i apologise about that last one lol

that last q woulda been 3%

[alpine sable]

So

I gotta get a 75% on my next test to get an A in the class

A B I mean

[rose parcel]

lol congrats anyway lol

[alpine sable]

Do you think it’s possible?

[rose parcel]

anything is possible

just get ur books out lol

[alpine sable]

Do you think it’s likely

I got a 86% on the practice one

[rose parcel]

i dont even know what ur studying

what does the whole paper look like

is it just maths questions?

[alpine sable]

But this took me 3 hours and I only got an hour and 10 on the test. And yea

[rose parcel]

send me the whole paper if u can lol

[alpine sable]

I can’t

[rose parcel]

oh okay

[alpine sable]

I can’t look at the test

It’s onljne

[rose parcel]

not even where u went wrong?

[alpine sable]

Oh yea

I can show you that

I missed 4 problems I believe

[rose parcel]

then u woulda got 88%

[alpine sable]

Wait I can’t look at the thing

Bc I already clicked out of it

And I was gonna put c

So I probably would’ve gotten it right.

So that means I would’ve gotten a 88%

[rose parcel]

i suppose

[alpine sable]

So you think I can get a 75% on my actual test?

[rose parcel]

but we only went through A lol

uh

well u may need to work on timing

[alpine sable]

It’s not only this

[rose parcel]

that only comes by doing lots of q's

but u should nail it nonetheless

[alpine sable]

Do you know how to do combinations fast? Like a fast way to do them?

[rose parcel]

like the choose function?

[alpine sable]

Like how many combinations of this can you have!

?

[rose parcel]

do you use pascals?

[alpine sable]

I have a bad headache but I just did the quiz

Should I go ahead and do the test while I’m at it or wait

Because the stuff is fresh in my mine

Mind

[rose parcel]

make sure you have a break...

[alpine sable]

I’ve been doing. This for 4 and a half hours but

I would be done

[rose parcel]

well i would go over the stuff i did wrong

[alpine sable]

And I wouldn’t have to try to remember bc I legit just did it

It was mainly combination stuff

And idk how to do that

[rose parcel]

give me an example?

[alpine sable]

Like cookies are sold in singles, 12’s and 24’s. How many combinations can you have to buy 48 cookies?

[rose parcel]

i'd just do that by hand

[alpine sable]

I mean the thing is when it’s on a time limit it’s kinda hard

[rose parcel]

true

have a peice of paper handy lol

[alpine sable]

Are you gonna be avalible

In like an hour and a half

[rose parcel]

it is

3:12am

[alpine sable]

Bc I wanna tell you how I did

Ohhhh

[rose parcel]

which is why i am a bit rusty lol

i've been doing maths all day in prep for the next academic year

[alpine sable]

I’m gonna go ahead and take it

How bad can it be

[rose parcel]

u can just take it whenever?

[alpine sable]

Until Monday

But the thing is all the stuff is fresh in my mind

[rose parcel]

well ur hot from the last test

yeah

[alpine sable]

I won’t even have to sit and think about what to do as much

That’s why I’m like I’m gonna do it now

[rose parcel]

if ur confident

go for it

[alpine sable]

I mean I did good on everything but combinations

I just can’t do those fast

[rose parcel]

do u have a calculator handy?

[alpine sable]

No

But I can use my phone

[rose parcel]

are you allowed one?

[alpine sable]

Why?

Is there a easy way to do it?

[rose parcel]

well

for easier questions

it might just make more sense just to do it by hand

but for larger amounts of combinations

u can use a function yes

it comes on most scientific calculators

[alpine sable]

All mine are by hand almost

Or smear

Smaller

[rose parcel]

but if you havent been taught it, it may just be easier to do em by hand

[alpine sable]

I’m so nervous

[rose parcel]

what i do

okay

[alpine sable]

Bc I went over my time by double

[rose parcel]

skip all the combination questions out

do them at the end

when you've done all the others

[alpine sable]

But the thing is I sit at the combination and this one for hours

[rose parcel]

that way u can't miss out on easy marks

[alpine sable]

I’m so nervous

[rose parcel]

they all gota be the same right

[alpine sable]

I need a 75% so bad

At least

[rose parcel]

how many of them are combinations

[alpine sable]

I’m gonna go and do it but I’ll talk to you later

And umm I had 2 last time

I think I got 1 right maybe

[rose parcel]

thats like 6%

[alpine sable]

The test is bigger

[rose parcel]

ur vibin

[alpine sable]

Wait

WAIT

[rose parcel]

if u see a combinations question

[alpine sable]

there is only 25 questions

[rose parcel]

just skip and come back to it

nicee

[alpine sable]

The other had 34

I hope and pray there are barely any combinations

[rose parcel]

ur cookin with diesel then

if there is

do em at the end

if they take a long time

do em last

for now

go get a tea

walk around for abit

[alpine sable]

I’m shaking

[rose parcel]

calm the nerves

get

a

tea

[alpine sable]

I haven’t even started

I haven’t ever had Yea

Yea

Tea

[rose parcel]

...

bye

[alpine sable]

I’m legit shaking

I can’t even hold my phone

[rose parcel]

dude

right

i'm going to ignore the fact that you have never had a tea

that fact

makes me shake

[alpine sable]

I’m in the US

[rose parcel]

and gives me anxiety

everyone

has

tea

[alpine sable]

Americans don’t really drink tea

[rose parcel]

because they are americans

[alpine sable]

Most ppl I know haven’t drank tea

[rose parcel]

it is

the sweet nectar of gods green earth

[alpine sable]

I’m. Gonna go take the test

[rose parcel]

distract urself for abit first

then come back and take it

[solemn iron]

Hello, can i ask if the peak to peak amplitude of a waveform is 8mPa, does that mean its peak amplitude is 4mPa since you only divide it by 2

[chrome portal]

hi there

[ornate peak]

?

[sage jacinth]

is this a quiz

[split oriole]

Try to use defination of derivative

[sage jacinth]

^ more specifically use this theorem: if a function is differentiable at a point, then it is continuous at that point

hint: the converse doesn't apply

[dusky notch]

@ancient saddle thanks for the help! I went back over it and found out what I was doing wrong

[night sinew]

can anyone tell me the first step that i need to do?

[topaz scaffold]

Find t

[gray isle]

step 1: draw a diagram

then determine stuff like sin(t), etc

[night sinew]

im a little bit confused with a b and c, do i need to use identities

i guess half identity and double angle?

[ivory ginkgo]

Which of the following is an irrational number ?
√9
√4
√7
√16

[oak chasm]

@ivory ginkgo Take the square root of each.

What's the square root of 9?

[ivory ginkgo]

3

[oak chasm]

OK, is that a rational number?

[ivory ginkgo]

yes

[oak chasm]

What's the square root of 4?

[ivory ginkgo]

2

[oak chasm]

OK, is that a rational number?

[ivory ginkgo]

yes

[oak chasm]

What's the square root of 7?

[ivory ginkgo]

id

k

[oak chasm]

Do you know how to simplify square roots, like how to simplify sqrt(75)?

[ivory ginkgo]

whats that

[oak chasm]

What's what?

Simplifying it?

[ivory ginkgo]

i got the answer

its 7

[sonic kelp]

Let y (x) be a differentiable function. Show that if the points on the graph of y (x) satisfy the equation $y^{2} \operatorname{sen} y=\frac{\pi^{2}}{2} x$ and $y(1/2)=\frac{\pi}{2}$ then $y'(1/2)=\frac{\pi}{2}$

[ocean seal]

alef0

[high idol]

Yo what the fuck kind math is this?

[placid zinc]

I swear I've seen you ask this like 4 times

[sonic kelp]

me?

[reef atlas]

How do i know the first digit of this

Teach pls

I’m dumb

[alpine sable]

hello i need help i dont know if im right

[reef atlas]

Pls help

[ancient saddle]

I think the first one should be a simple membership relationship, and for the third one use the "some" operator

[alpine sable]

wait i have the choices here

[ancient saddle]

yes, that's correct

[alpine sable]

nice thank youu,, do you have any idea about the others as well?

if theyre correct?

[ancient saddle]

They look correct, just change the third one

[alpine sable]

here is my final answers

i will exchange the third and first?

like this?

[ancient saddle]

Nono, I didn't mean that. I meant that the third one is wrong too as I said before

[alpine sable]

ohh okayy waittt

is this correct now?

[ancient saddle]

Yes 👍🏽

[alpine sable]

NICE! THANK YOUUU VERY MUCHHH!! AAAA :>>