help-17

[opal crow]

Or a chair

then idk it depends on the scale

If you only have the character to measure I don’t think it’s possible to get his accurate height

Ill close the channel now

.close

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[flint plume]

Hello

[thin vale]

🌊

[flint plume]

I need help with geometry rq u got me?

[thin vale]

What's your doubt

[waxen hawk]

We do not help, we lead

[flint plume]

Huh..

[vast shale]

we are supposed to help

ignore that guy please

[flint plume]

🤦‍♂️

Anyway

Imma lil slow so yea idk understand da question

Idk if u can see dat

[waxen hawk]

Use the properties of circle

Note that one of the circle is smaller

Therefore, AB=BC would be Bullshirt

[flint plume]

I put bc=cd is that right

[waxen hawk]

Because one of them is smaller

[waxen hawk]

Sure thing

What is bc and cd in terms of the small circle

[flint plume]

Idk if theres another answer tho

[flint plume]

Idk

[waxen hawk]

They are all r____s of the small circle

[flint plume]

Radius

[waxen hawk]

Smart people

Now, you should be able to see the truth yourself

[flint plume]

So thats right but is there another answer?

Close

C.l.o.s.e

[waxen hawk]

.close

[flint plume]

How i close this 😭

[waxen hawk]

Type .close

[flint plume]

.close

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[toxic birch]

im watching this video and i cant understand why the a0s, a1s, etc. cancel out

[crude arrow]

chef you can consider it as subtracting

on both sides

like a_1 - a_0 = 4

thus the a_0 cancels out

[toxic birch]

oh ok

thats makes sense

thanks

.close

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[fringe wyvern]

20th

[flat whale]

hi do you need help on your test

[fringe wyvern]

Nah its just the last year paper so

<@&286206848099549185>

[flat whale]

can you show what you tried

[fringe wyvern]

sum of odd terms = A1 +A3+A5......

Sum of even terms = A2+A4+A6.....

i didn't understand the question so idk maybe

[flat whale]

you just need to substitute what it means to be an arithmetic progression for all the A_i terms

[fringe wyvern]

subsititute 2A+1?

[cedar delta]

yo

here to help

okay

so I need to u respond

[fringe wyvern]

yah !

[cedar delta]

what kind of no. is 2n +1

like always even or odd

[fringe wyvern]

odd?

[flat whale]

no. look up what it means for it to be an arithmetic progression

[cedar delta]

yup

so, we have total 2n + 1 no.s

starting from 1

[fringe wyvern]

every term should have same commen difference

[fringe wyvern]

why 1 ?

like the term 1?

A1?

[flat whale]

write a formula for the general A_i term

[fringe wyvern]

a+(n-1)d

[flat whale]

that's the general nth term. yea plug that in for all the A_n

[fringe wyvern]

<@&286206848099549185>

[fringe wyvern]

help me

plz

T_T

i so cooked

[vast shale]

Idk how
I suck at this part of math 😭😭

Someone please help the person

[fringe wyvern]

<@&286206848099549185>

<@&286206848099549185>

[flat whale]

this is the right start. keep going

[flat whale]

,rotate

[flat whale]

right?

[fringe wyvern]

what do i do after this T_T

[flat whale]

calculate things in the problem

[vocal sleet]

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[timid ruin]

I cant figure out what i need to do

i cannot understand it

[gentle thicket]

so it will not be differentiable at those values of x, where the function isn't continuous

[crude arrow]

other way around

this isn't necessarily true

consider |x|

[gentle thicket]

oh lol

wait

[crude arrow]

it is not differentiable at x = 0

yet continuous

[rare swift]

the opp is always true

Non continuity leads to non Diffrentiability

[crude arrow]

this ^

[timid ruin]

i see

can i get some help along with this question so i can further understand?

can someone give me a brief definition of differentiability

[crude arrow]

the existence of the limit

lim h -> 0 (f(x+h)-f(x))/h

[timid ruin]

ok let me check

what is the first step

-1 looks non

differentiable

[visual coral]

The normal person's explanation for that is: if the graph doesn't jump or randomly change direction in one moment (like |x|) then it's differentiable

[timid ruin]

i see

thank you the normal person definition helped

so -1 would be a non differentiable right

[visual coral]

It's not the most rigorous definition but it's the most reasonable one for this problem imo

Should be yep

[timid ruin]

is x=4 one as well?

[visual coral]

Yep

[timid ruin]

would there by anymore?

[visual coral]

Shouldn't be if I'm not dumb 😭

[timid ruin]

i got it wrong

[visual coral]

Fuck

[timid ruin]

i got one more attempt

[civic otter]

-1 and -6 I would say

[timid ruin]

why -6?

and what about x=4

do i include the x=4 aswell?

[civic otter]

Well, at x=4 the function is not even defined

[civic otter]

Because it's got a slope of "∞"

[timid ruin]

but x =-1 and x=4 look the same

[visual coral]

The basic idea is we can't really say anything about the rate of change if we just say it's infinite

[civic otter]

Indeed, both -1 and 4 are points of non differentiability

[timid ruin]

so it would be -1,-4,-6?

[civic otter]

Yep

At least that's what I would say

[visual coral]

9 might have been included if it were in the interval I think

But it isnt

[timid ruin]

nice thank you can you help me awith another one

[visual coral]

So

[timid ruin]

no 9 is not the answer

ok i will try again

[visual coral]

Yeah I'm saying they set the interval to exclusively less than 9

[timid ruin]

ok i got another question

i say x=-4

x=-1

x=7

any others im missing?

nice i got it correct

this might be a hard one

i dont know if vertical asymptoes is non differentiable

i say -3 and 3

agghh hi got it wrong

[visual coral]

I forgot the exact rules for these ones

[timid ruin]

i think its jsut 3

[visual coral]

But 1 should also not be differentiable

[timid ruin]

yes i got it wrong

it was -3 3 and 1

ok will try again

one attempt left

[visual coral]

We technically don't consider holes to be differentiable points, but the limit exists if it's still smooth around it

[timid ruin]

on this

am i missing something

i will use the restroom will be back

[visual coral]

Should be -3 and 4

[vocal sleet]

@timid ruin Has your question been resolved?

[timid ruin]

ok i am back

@visual coral i tried -3 and 4

[visual coral]

Let me guess

It didn't work

[timid ruin]

nope

[vast shale]

there isnt an answer

[timid ruin]

what are we missing

why not

[vast shale]

-3 and 4 arent continuous

[timid ruin]

oh i see

[visual coral]

Oml wait

[vast shale]

4 is a removable discontinuity, and -3 is a vertical asymptote

therefore, you should click the "Remove answer" so that there is no answer

[flint harness]

-9 and 9 would still work?

[timid ruin]

so if it is continous does it mean there will be a differentiability?

[vast shale]

they arent part of the interval

interval is excluding those values

[flint harness]

Mb

[timid ruin]

ok it was no solution

[vast shale]

you can see that in the interval that is listed, there is no "Greater than and equal to" symbol

[vast shale]

good job

[visual coral]

Differentiablity needs continuity and some extra conditions

[timid ruin]

ok i got a similiar question

will this be 0?

[vast shale]

now there is at least 1 answer

thats 1 of them

[timid ruin]

0 -7

[vast shale]

x=0 is 1 of the answers

[timid ruin]

i found 2

[vast shale]

and x=-3

i mean

-7

x=-7

good job

but

there is 1 more

[timid ruin]

are there any more?

[vast shale]

can you differentiate a point that is at a corner on a graph?

like

wait hang on

i might be seeing that wrong

[timid ruin]

only through that range -9 and 9

[vast shale]

x=-2 might be non-differentiable, but i could be seeing wrong, you cant differentiate corner points

[timid ruin]

does horizontal tangent line matter for differentiablility?

[visual coral]

This is the problem with these types of questions😔

[timid ruin]

so hard to tell

[vast shale]

im all too familiar with delta math, i can understand

but we can notice this

[timid ruin]

ok it was those 2

[vast shale]

the corner isn't sharp enough

it had a slight curve

[timid ruin]

does it have to be a v curve?

[vast shale]

any curvature with a corner point is differentiable

[timid ruin]

like a sharp v curve

[vast shale]

it the curve is like a v, or has a sharp, no curve, its not differentiable

if it has the slightest curve, its fine

honestly, only time when lookin at curves so intently is allowed XD

[visual coral]

For differentiablility, only the first derivative has to exist

[timid ruin]

yes deltamath is a little crazy

[visual coral]

So... as long as it's not a sudden curve it's fine

[timid ruin]

do you do your own delta math farside?

[vast shale]

i get some assigned (a lot, too much for any human in my class to apparently do in 1 hr)

[timid ruin]

yeah good thing my teacher has a few days for it

so that is a good point

[vast shale]

for some reason, back in calc, my class would have like 2 people, including me, who would do the delta math in like 1 minute, while everyone would still do it for like a week

idk why

regardless, i assume the issue is resolved?

[timid ruin]

you are chosen one

[vast shale]

feels like that XD

[timid ruin]

i have two more

questions

[vast shale]

alr drop em

[timid ruin]

i say there are none

[visual coral]

Bro might be gojo

[timid ruin]

what are your study methods any way farside for calc

[vast shale]

i dont study :|

i dont know how to study

and im yet to get anything lower than A '-'

[vast shale]

this is a correct hypothesis

[timid ruin]

yup i think your just the chosen one

[visual coral]

I've had that streak and I'm hoping my actual Calc class doesn't ruin that

I've been self study fr now

[vast shale]

AP calc AB?

[timid ruin]

i self study then i see the test and im lik ewow

[vast shale]

bc the teacher I had for AB was...interesting

[visual coral]

College lvl

[vast shale]

i learned more from milk cartons than him

[timid ruin]

i am taking bc

[vast shale]

bc cool

parametric derivatives :D

fun stuff o _ o

[timid ruin]

i dont know how i am gonna manage

[vast shale]

you'll manage

[timid ruin]

the test kill me

[vast shale]

oof

[timid ruin]

that is what is gonna be the death of me

i dont know how to study for tests

[vast shale]

for me, i stare at a screen for 2 seconds, and im good for 2 months

👍

[timid ruin]

i think you have a photographic memory mabye

ok this is the last part of the section

i am thinking these are corrects

[vast shale]

good guess

bc its right 👍

[timid ruin]

lets goooo!!

on to the next section

i think this is the easy one

[vast shale]

oooooh boi

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[sharp lynx]

C(-2) = A(-2)*B(-2) = 1*9, etc

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[tacit hawk]

Draw a pre-image polygon with vertices A(-2,5) B(-1,1) C(3,3) D(2,7). Translate the pre-image using the vector 〈-2,3〉 to create the polygon A'B'C'D'. Change the color of the image and show the coordinates of each vertex.

Is this correct?

[knotty lynx]

Looks like it

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[mild rapids]

How can I demonstrate that all natural powers of 2 are NOT divisible between 3?

[mild rapids]

for example 2/3 is not integer

4/3 is not integer

8/3

16/3...

I have tried for 2^35 and all of them are not divisible by 3

Prove

lol

[mild rapids]

Literally I was messing around with random thoughts and then I got stuck with this problem in my mind

idk, lemme do something in python. I will thy with very very bigi numbers

Maybe I can find a case when this is not true in a small number. (Small like 2^100 lol)

[spark pawn]

since 2/3 = 0.66... raising the 2 by any integer power x would result in 0.66... being multiplied by 2^x.

[hidden bramble]

log3(2) is irrational so no matter what do you multiply it by, you won't get a integer

[spark pawn]

since 0.66... x 2 = 1.33.. and 0.66... x 2 x 2 = 2.66... and 0.66... x 2 x 2 x 2 = 5.33... and so on, you will see every number that is 0.66... x 2^x end with either a .33... or a 0.66... without ever changing therefore they will all not be divisible by 3.

[mild rapids]

yeaaa

thats right

btw, I tried for 2 to the power 1000

all 1000 cases lol

[mild rapids]

thanks

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[swift canyon]

I need help

[swift canyon]

B and C are looking off

[quick spire]

printing error or typo

[swift canyon]

Ok thx

[quick spire]

ask ur teacher about it

[swift canyon]

Ok

Thank you

[quick spire]

np

[swift canyon]

.close

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[gusty patrol]

Hello! I am confused about how 5 is less than and equal to 9, I understand that 5 is less than to 9, but not the equal part. The second one, im not sure how 5 is greater than 5 itself.

[quick spire]

≤ doesnt mean less than AND equal to

it means less than OR equal to

so if either is true, it satisfies

[gusty patrol]

I see now, thank you very much!!!

[quick spire]

yw

[gusty patrol]

.close

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[desert spindle]

Can someone let me know if I solved part A correctly pretty please

[spark pawn]

no, f(g(2)) is not equal to 0.5.

g(2) = 2

plug that back in to f(x) to get f(2)

so you just have to look at the graph to see what f(2) is

[vocal sleet]

@desert spindle Has your question been resolved?

[desert spindle]

Oh, so f(g(2)) would be 4?

[spark pawn]

yes

[desert spindle]

Yay thank you

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[old jungle]

nvm…

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[silk osprey]

what have you tried

[uneven dirge]

Apply a²-b² formula

[gilded meadow]

.close

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[foggy coral]

Show me all the steps

[flat whale]

!nosols

[vocal sleet]

As a helper, please do not give out answers that could be copied as a homework solution. Have the student work through the problem themselves and guide them along the way.

[flat whale]

!noans

[vocal sleet]

The purpose of this server is to help you learn, not to hand out answers. Do not ask someone to give you the answer directly.

[foggy coral]

Can you tell me what method I use to to start?
Is it the quotient rule, product rule?

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@foggy coral Has your question been resolved?

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[shadow orchid]

Hey, I need help to transform intersection 3d point to 2d uv point

[shadow orchid]

I made this code looking at other formulas ```lua
function lineIntersectsPlane(lineStart, lineEnd, planePosition, planeSize, planeNormal)
local lineDirection = lineEnd - lineStart
local planeToPoint = planePosition - lineStart

local denominator = planeNormal:dot(lineDirection)

-- Check if the line and plane are not parallel
if math.abs(denominator) > 0.0001 then
    local t = planeToPoint:dot(planeNormal) / denominator
    
    -- Check if the intersection point is within the bounds of the line segment
    if t >= 0 and t <= 1 then
        local intersectionPoint = lineStart + lineDirection * t
        
        -- Check if the intersection point is within the bounds of the plane
        local halfSize = planeSize / 2
        local minBound = planePosition - halfSize
        local maxBound = planePosition + halfSize
        
        if intersectionPoint.x >= minBound.x and intersectionPoint.x <= maxBound.x and
           intersectionPoint.y >= minBound.y and intersectionPoint.y <= maxBound.y and
           intersectionPoint.z >= minBound.z and intersectionPoint.z <= maxBound.z then
            -- return 0-1 x and y coordinates of the intersection point
            return (intersectionPoint - minBound) / planeSize
        end
    end
end

return false

end```

it works great

but now I need to know where exactly did user hover on the plane

like top left should be 0,0, top right 1, 0 bottom right 1, 1

I tried looking for solution on google but I cant find anything, only some not related formulas

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@shadow orchid Has your question been resolved?

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@shadow orchid Has your question been resolved?

[sharp walrus]

You are gonna want some vectors u, v in the plane to be used as basis

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@shadow orchid Has your question been resolved?

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[real trench]

How many four-digit numbers contain the digit 5 or 7 (or both)?

(also give me a solution, i am stuck on this question, srry for bad english)

[vast shale]

What have you tried?

[vernal ridge]

do you mean 5, 7 and both ?

[real trench]

wrong sent

here bro

just read

[vernal ridge]

ah

well sounds like premutations

[lyric relic]

what a coincidence

[vernal ridge]

Lmao

[real trench]

lol

i think thats the answer

[vernal ridge]

lemme see if I can solve it tho

[lyric relic]

yeah it can't be just a case

[torn oar]

I am guessing it's combination permutations sum

[vernal ridge]

ya perm since order matters

I did this last semester and forgot it all lmao

[real trench]

can uall do this?

idk im really stuck on that

hello?

[torn oar]

Yea
I can guide you little bit
Try to find out the 4 digit number can exist

[vernal ridge]

okay i got it

[torn oar]

i.e.
9999-0999=>9000 (total number of only 4 digit numbers)

[vernal ridge]

so first there 9000 different 4 digit numbers
9 x 10 x 10 x 10 (In each place it would be 10 different options - digits - but the first digit cannot be 0 as it wouldnt be a 4 digit number anymore so it becomes 9 options.)
then you find how many numbers do NOT contain 5, 7, or both bc it's quicker than doing it the other way around
10 digits - 5 and 7 is then 8 digits.
so your combinations looks like
7 (remember the first number cant be 0 so we get 7) x 8 x 8 x 8
you get 3584

now 9000 - 3584 is 5416

[torn oar]

yea

[real trench]

tysm @vernal ridge

also @torn oar

i thought this is dead

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[pliant oyster]

I’m not sure what the union of these two sets would look like exactly

Well

I understand it would be 6, 7 and all reals such that x > 7 however I’m not sure how to write this in set notation

[tranquil trellis]

yes

You can write that as ${6,7} \cup {x \in \mathbb{R} | x > 7}$

[twin meteor]

Ari

[pliant oyster]

Ohhh

I feel very stupid

Thank you so much

[vernal ridge]

Number line

[tranquil trellis]

or ${6} \cup {x \in \mathbb{R} | x \geq 7}$

[pliant oyster]

Would it not be the set that contains the number 6 or is just writing 6 sufficient?

But regardless thank you for your help

[tranquil trellis]

wait no you need {6}

it didn't copy over when I copied and pasted mb

[twin meteor]

Ari

[pliant oyster]

Ah so the set that contains the number 6

Thank you

[tranquil trellis]

[pliant oyster]

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[livid steppe]

Need help on question 3

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[long kraken]

I need some help.

[long kraken]

How can I find the area of ​​this triangle?

1/2 * h * g

but I know about the angles and the sides, but not the height itself

[mild flower]

do you know trigonometry?

there is also a formula called Heron's formula which just uses the side lengths

[quick vigil]

You can also use 1/2 . (Cos of the angle)(Other 2 sides)

[long kraken]

Yess?

[long kraken]

Yes, so from RS the length = 2.30 and the angle at the very bottom is 81.4 degrees

[long kraken]

I don't know about that theory. It must be done with sine, cosine, tan...

SP is = 3

[quick vigil]

This is sin not cos mb

[quick vigil]

Oh

[mild flower]

that is not enough to constrain the triangle, you need more info

[long kraken]

yea

[mild flower]

look up the cosine law

[long kraken]

What are we missing?

[mild flower]

I didn't see that you had SP as well

[long kraken]

I have calculated the angles and sides.

[mild flower]

all of them?

[long kraken]

Yes.

I can write them all here where it is.

[mild flower]

okay, use trigonometry to calculate the elevation of R

from the line PS

[long kraken]

Yess but how

wich formula?

[mild flower]

draw a line from R perpendicular to PS

now you have a right triangle

[quick vigil]

Maybe this can be used idk if you have been taught this tho

[long kraken]

6?

[quick vigil]

It's b ;-;

[long kraken]

So i can this formula?

Im not understand

[quick vigil]

Idk if you have been taught this but yea you can if you want

[mild flower]

,tex .sohcahtoa

[twin meteor]

hayley 🥥 🌴

[long kraken]

So I have to reverse the triangle?

[long kraken]

because if I turn the triangle over, it's a right-angled triangle, isn't it?

[mild flower]

figure out the length of the purple line

[long kraken]

ahh

so I can use either tan, sin or cos

should I use Pythagoras' theorem?

[long kraken]

.

So what will the formula be? Am a bit confused. @mild flower

So if the length for PS normal was 2.30, can just halve it?

<@&286206848099549185>

I have the angles from the triangle, but I can only find half of each number from the isosceles triangle.

@quick vigil

[quick vigil]

Huh

[quick vigil]

Use this if you can

I don't understand what you are trying to say

[long kraken]

What can't you understand?

[vocal sleet]

@long kraken Has your question been resolved?

[long kraken]

wiat

guys

can someone help me?

<@&286206848099549185>

[sweet sigil]

which question do you have

[long kraken]

.

[long kraken]

you can se on the top

scroll and you can see

[long kraken]

HELP pls

I can't solve the formula because it gives me the wrong result.

@mild flower

help me

We need to use the tangent, since we need to find both legs, unless it is the other way around.

Come on, only this task is missing.

I found out, so the length of the purple line is 1,75 cm?

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[grim frost]

hi

[grim frost]

18 + 19 i am stuck on

help would be appreciated

[dull bear]

There's a tan, and an inverse sec

[grim frost]

yes

tan(cos(5/3))

not sure how to proceed using 5/3 as an angle measure without a calc

(calc is short for calculator btw)

[dull bear]

Not quite, I don't think the notation sec^{-1} usually means inverse sec, which is not 1/sec

[grim frost]

sec^-1 isnt 1/sec?

😦

[steady plover]

sec inverse x is cos inverse 1/x

[dull bear]

No, it's not (or at least, it usually isn't!)

Anyways, can you think of a way to relate tan and sec, maybe?

[grim frost]

yeah sin/cos * 1/cos

so maybe sin/cos^2

[grizzled halo]

ngl i'd just draw up a right-angled triangle, letting theta=sec^(-1)(5/3)

[grim frost]

using 5/3 as the angle?

omg

im tweak

[steady plover]

just use this it will convert to a easier form, or you can do what chartbit said

[grim frost]

i can rewrite it the sec part as sec(theta)=5/3. draw the triangle and get that 4 is the missing leg. so then tan of that triangle would be 4/3 yea

i got tripped up bc i remember doing trig proofs and sec^-1 i would always just reciprical

close.

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[white flint]

I dont understand how it can go straight from positive and increasing to negative and increasing

so there is a break in the line from 1 to 3?

if you were to graph

yea where it drops

from positive to negative

what about 3<x<4

hm

so from 3<x<4 I guess it would be concve down and decreasing

thats one funky graph

yeaaaaa

😔

alrighty

thanks!!

how do it

oh

sorry

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[mild rapids]

xsquare + ysquare = 25

[mild rapids]

how can I get x and y

now I have 2 diferent equations with x and y isolated. What's next?

[drifting jackal]

Do you have more info then that?

[mild rapids]

Find all the pairs of integers that solve: xsquare + ysquare = 25

is x2 + y2 "factorizable"

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[quick junco]

I'm kinda confused on #3

on like where 85 seconds would be

[iron umbra]

hey i'm new here maybe u guys help me a lot

[quick junco]

i need help too lool

[iron umbra]

i'm a jee aspirant and ?

[flat whale]

!occupied

[vocal sleet]

Someone else is already using this help channel. If you need help with a question, please open your own help channel/thread (see #❓how-to-get-help for instructions).

[quick junco]

Could i get help with this

gtg sleep soon

😭

[iron umbra]

this is easy question btw

[flint harness]

what is jee aspirant 😭

can I say I am mit aspirant

[quick junco]

ye its pretty easy, im js confused where 85 seconds would be

like on the line

[iron umbra]

its used for student who prepare for IIT

[iron umbra]

i know how to solve how can i tell u ??/

[flint harness]

just in between 80 and 90, but whoever solved it just approximated

[flint harness]

Does this mean I am a top college aspirant too then

[pine hull]

Its an exam through which you can get admission in top engineering college in India

[quick junco]

ah

so no 1/2 or wtv?

[iron umbra]

yup

[iron umbra]

maybe

[vernal violet]

Dawg its not that deep its a help channel just help him and then close smh😭

[quick junco]

-4/2 ½ m/s?

[flint harness]

u fr ain’t a jee aspirant

[vernal violet]

Frfr

[quick junco]

ya i aint 😭

[flint harness]

no like you notice that the slope of a displacement graph is equal to the velocity

[iron umbra]

let me solve the question but how will i send the answer

[flint harness]

and the graph is a straight line from 60s to 100s

[kind light]

you dont

[quick junco]

i put -4 for the rise since it's a negative slope

[flint harness]

Whatever I think ur just overthink ing

is this calc?

[quick junco]

physics class

[quick junco]

yeah im def overthinking ig

[vernal violet]

You can just count the squares on the grid in this case

Cuz its slope

[quick junco]

ah

oh

you right

3/4 m/s?

-3*

wait

i put that wrong

-4/3

m/s

[vernal violet]

From 60 to 85?

[quick junco]

oh nvm

its -4/2

oops

[vernal violet]

🤦

[quick junco]

😭

is it wrong?

[vernal violet]

The rise is -4 1/2 from 60 to 85 right

[quick junco]

oh.

bruh

i put that before

[quick junco]

.

[vernal violet]

Dawg

all of those answers are correct

[quick junco]

oh

🤦‍♂️ 🤦‍♂️ 🤦‍♂️ 🤦‍♂️

im cooked i overthinked it too hard

[vernal violet]

😭🙏🙏🙏

[quick junco]

simplified would be 1.8 m/s tho right

[vernal violet]

Which one, 60-85?

[quick junco]

yeah

[vernal violet]

Shlawg

The slope is NEGATIVE for that line 😭

[quick junco]

I FORGOT TO ADD THE NEGATIVE

JMEN BHJFRNBEHJFNDS

[vernal violet]

But yeah its -1.8

[quick junco]

ALRR

THANK YOU

APPRECIATE U HEAVILY

🙏

[vernal violet]

Np bro

[quick junco]

.close

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[iron umbra]

all here are high school students like me ??

[quick junco]

.reopen

[vocal sleet]

✅

[quick junco]

wait lowkey

FOR NUMBER 2

IS IT 4/10 OR 5/11

Im lowkey losing brain cells at 1 am

😦

[vernal violet]

Where section

[flint harness]

did you see what the y units are

[quick junco]

Section 2

**

[quick junco]

i

[vernal violet]

He means that the y is in cm

[quick junco]

y units should be cm

oh

shjfbdhsjfbdjs

i almost screwed up units

doing this at night is a bad idea ngl

next time i ask for help ill do it at a reasonable time so you dont struggle with my stupidity 🙏

probably

[quick junco]

Is section 2, 4/10 cm/s or 5/11 cm/s?

stupid question its 4/10 cm/s

🙏

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[brisk summit]

how do i integrate this

this is in the the u-sub method unit

[hybrid flicker]

I would try the u sub u = x+2

[fiery wave]

I don't immediately see that working

[hybrid flicker]

And then power rules of integration will work it out

[brisk summit]

i get (u-2)^2 (u)^1/2

[fiery wave]

oh yes

I see the vision

[hybrid flicker]

Yep now expand

[brisk summit]

ohh you expand first then multiply out the u^1/2

ok ok

[kind light]

am i stupid isnt this wolfalph's font?

[brisk summit]

yes LMFAO

[kind light]

wtf

[brisk summit]

i tried to work backwards from the answer but it didn't work

💀

[kind light]

fair

[brisk summit]

ok thanks everyone

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[unborn junco]

can someone pls explain how derivative of the top part is the lower part

[oak magnet]

apply product rule

[urban edge]

no need to

just distribute

[oak magnet]

Oh yeah

[urban edge]

apply derivative

then factor

[unborn junco]

distribute as in

[urban edge]

multiply the P^9 to P+1

[unborn junco]

ohkk got it

thankss

[urban edge]

youre welcone

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[mint shard]

Is there any other way to solve this question other than a long method of

[mint shard]

using this proof

[civic otter]

???

[mint shard]

who is you

[civic otter]

Spammer probably

<@&268886789983436800>

[mint shard]

yea it's aight

[flat whale]

did you try finding an f(x) and g(x) to use this

[flint harness]

I always be looking at the same problems as u 😦

[flat whale]

feel free to take over

[mint shard]

g(x) will remain x^2+x and I'll have to find how to rewrite the the terms inside bracket I remember getting it this way but don't remember the splitting

hence is there a better method?

[flint harness]

I dont see a better way either

[mint shard]

aigh' thx still ❤️

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[noble mortar]

how can I implicit differentiation to find dy/dx?

[vast shale]

differentiation each term wrt x

then solve for dy/dx

[flint harness]

just differentiate like how you normally would, but you need chain and product rule for the left side

[noble mortar]

Is this correct?

[noble mortar]

I did

[gentle thicket]

this is a problem

[noble mortar]

i didn't got u. What mistake did I made?

[gentle thicket]

it was supposed to be 2y

[noble mortar]

ooooooo

got u

thanks

[noble mortar]

Is this correct now?

.close

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[dense spire]

how do i solve this?

[dense spire]

what does solution to the inequality mean

[twin horizon]

Split in two cases where 6u-18 is +ve and -ve

[dense spire]

whats +ve and -ve

[twin horizon]

The values of u where the inequality is true

[twin horizon]

Positive and negative

[dense spire]

what does inequality mean

[twin horizon]

The thing on top you are meant to solve

[dense spire]

oh so when its bigger?

whats the difference between hollow and filled dot

[twin horizon]

Hollow is strictly less than or strictly greater than (<,>)
Filled is for less than or equal to, greater than or equal to(≤,≥)

[dense spire]

is this right? u<1. - u>5

and if so can you give me pointers on how to draw it?

the line confuses me too

[twin horizon]

Lemme check

[dense spire]

hollow dot, filled and interval

[dense spire]

thx

[twin horizon]

When u<1 and u>5

What is that dash for

[dense spire]

the line says interval

[twin horizon]

Can you be a bit clearer

[dense spire]

so i have to use two dots

and then i can click on the line

to mark the interval between

so i need to use the hollow dots right?

[twin horizon]

Yes

[dense spire]

thx bro you a W

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[tribal pumice]

What did you try?

[raven marsh]

I tried distributing the n at the start and multiplying Everyhting

[bitter pilot]

maybe induction works

[tribal pumice]

Ok, this is not how you do it here

There is a shorter way

Have you learn modulos?

[raven marsh]

No

[tribal pumice]

Ok, it doesn't really matter but ok

There are 3 possible cases

Either n = 3k, for some integer
Either n = 3k + 1, for some integer k
Either n = 3k + 2 for some integer k

In any cases, exactly one of these 3 terms in the product will be divisible by 3

I let you think about it

[raven marsh]

Where did you get ‘k’

[tribal pumice]

k is any integer

I'm just saying exactly one of these 3 cases must happen

[raven marsh]

Oh

[harsh canopy]

i dont know if this is easier, but either n, n + 1 or n + 2 is a multiple of 3, you could see what happens in each case

[tribal pumice]

0, 3, 6, 9, 12, 15, ..... are such that n = 3k
1, 4, 7, 10, 13, 16, ..... are such that n = 3k + 1
2, 5, 8, 11, 14, 17, ..... are such that n = 3k + 2

[raven marsh]

Well I was told that the problem is always divisible by 3

I just need to prove it

I just don’t know how to correctly write it out

[vast shale]

if n is not 3k, then it must be 3k+1 or 3k+2

[vocal sleet]

@raven marsh Has your question been resolved?

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[fickle apex]

I'm stuck on part B

[fickle apex]

So far the only reason ive been able to come up with is that its because there would be a negative area, if ad<bc and the formula used was ad-bc. But I'm getting confused by the hint the question gives and im unsure as to whether im on the right track or not

[vocal sleet]

@fickle apex Has your question been resolved?

[fickle apex]

<@&286206848099549185>

[vocal sleet]

@fickle apex Has your question been resolved?

[fickle apex]

<@&286206848099549185>

[quick crag]

https://www.desmos.com/geometry/1xm18nbh8w

[vocal sleet]

@fickle apex Has your question been resolved?

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[exotic trout]

Hey there! I think I understand/identified what was asked (this is statistics), but I wanted someone to check over my answers just to make sure they're right.

1.1 Definitions of Statistics, Probability, and Key Terms
For each of the following eight exercises, identify: a. the population, b. the sample, c. the parameter, d. the statistic,
e. the variable, and f. the data. Give examples where appropriate.

42. A fitness center is interested in the mean amount of time a client exercises in the center each week

what i answered:
a. all the clients in the center
b. the amount of clients in the center
c. average amount of time a client exercises in the center each week
d. average amount of time the clients spends exercising
at the center
e. amount of time one client spent
on exercising in the center each week
f. time spent by clients exercising

[oak magnet]

<@&268886789983436800>

[inner osprey]

<@&268886789983436800>

[oak magnet]

Ty

[inner osprey]

Ty

[vocal sleet]

@exotic trout Has your question been resolved?

[exotic trout]

I'm not sure my answer is correct, I jus want someone to go over it to see if anythings wrong and how I can fix it

<@&286206848099549185>

[exotic trout]

nvm

.close

[vocal sleet]

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[vocal sleet]

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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>.
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• Be polite and have a nice day!

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[covert forum]

helo

[covert forum]

helo

i dont know where to start

[shrewd moth]

what math are you in

[covert forum]

algebra 2

[shrewd moth]

and what are you trying to find

[covert forum]

the domain

[hushed ether]

homegirl.

[shrewd moth]

alright well what is something you can never divide by?

[covert forum]

0?

[shrewd moth]

yes

[vast shale]

well im at y^2 +12y -20

need to continue solving tho

[shrewd moth]

so if you set the bottom to 0 what does that give you

[shrewd moth]

the heck are you doing lol

[hushed ether]

/calc

[covert forum]

undefined?

[hushed ether]

,calc 0/0

[twin meteor]

Result:

NaN

[hushed ether]

l;kasdkjags

yes

[shrewd moth]

yep, which means where the function is undefined

that means if you solve for y in: sqrt(y - 10) = 0

[vast shale]

Idk I haven't done math in 3 years

[hushed ether]

but the function cannot be undefined.

[shrewd moth]

you will get where the domain is undefined

[hushed ether]

were finding the difference.

[shrewd moth]

huh

[hushed ether]

you see,.

do you know the quotient difference equation.

[covert forum]

i dont get it

[hushed ether]

f(x) = (x+h) - f(x) / h

[covert forum]

sqrt(y - 10) = 0 would become y = 100?

[shrewd moth]

dont get me or dont get nate

[covert forum]

i dont get you

[shrewd moth]

well no because you need to get rid of the square root first

[covert forum]

i did

i squared the entire thing

wait what

[shrewd moth]

if you square everything you shouldve gotten y -10 = 0

[covert forum]

im lost

[shrewd moth]

which would be y = 10

[covert forum]

okay

so the domain is 10

?

[shrewd moth]

this means that the function at 10 or under

[hushed ether]

im asking for help 2

were trying to solve the same problemo

[shrewd moth]

oh

[covert forum]

so

[shrewd moth]

sorry i meant 10 or under*

which means the function is undefined between negative infinity and 10

this leaves what as the domain of the function?

[covert forum]

10?

[hushed ether]

but the lim is h > 0

[shrewd moth]

where are you getting h from lol

[shrewd moth]

no

you just solved the equation

you found that 10 or under is where the function is UNDEFINED

[covert forum]

okay

[shrewd moth]

so what does that leave you with

if everything 10 or under is undefined

[covert forum]

so itd be all real numbers above 10

?

[shrewd moth]

yep

[hushed ether]

dude

h is the small change in x

[shrewd moth]

so the domain of the function is where y is above 10

[covert forum]

okay

ty

could you help me w one more thing

[shrewd moth]

man im gonna be honest i have no idea what youre trying to ask me right now

[shrewd moth]

go ahead

[hushed ether]

then solve the problem if youre so smartie

[shrewd moth]

i just did

[covert forum]

hold on

[shrewd moth]

i think youre getting confused rn, tony is the one that i am helping

tony's problem was asking for domain

i helped tony solve for domain

[hushed ether]

oh

tony dont know what hes talking about

the domain isnt needed for the problem

[shrewd moth]

then what are you guys trying to solve for

cant really just give me a function and not give me what to solve for

[hushed ether]

wait nvm

dont mind that

[shrewd moth]

.-.

[covert forum]

it says to find the different quotient and simplify

[hushed ether]

thats what i was talking abt

[shrewd moth]

ic

alright well

just find f(2+h) by plugging in (2+h) into f(x) first

then find f(2)

then subtract

then divide by h

[hushed ether]

solve it then

i think youre a charlatan

[shrewd moth]

lol what

its like simple math

[covert forum]

i dont get it

[shrewd moth]

f(2+h) = (2+h)^2 - (2+h) + 1

simplify you get f(2+h) = 4 + 4h + h^2 - 2 - h + 1

[hushed ether]

okay

[covert forum]

okay

[hushed ether]

so

[covert forum]

so after that?

[hushed ether]

after that