help-0

[flat gust]

Yes

Here

3(96/37) is the same thing as

3 x 96/37

3 x 96 = ?

[fleet stream]

288

[flat gust]

Yes

288/37

So the equation would then be?

(288/37)-8y=24

Yes?

[fleet stream]

no need to solve the 37?

[flat gust]

3 x 96/37 is the same as 3/1 x 96/37

1 x 37 = 37

So u solved it

So let's move on

[fleet stream]

Okay

[flat gust]

How to isolate the y?

You move it to the other side

(288/37)-24=8y

Get it?

[fleet stream]

I was doing it backwards lol

Okay

[flat gust]

We good?

[fleet stream]

Yes

[flat gust]

Alright

So what can you do here

[fleet stream]

Solve the one in the parenthesis first?

[flat gust]

Well if you solve it, it would be a decimal number

which is ugly

[fleet stream]

Yes

[flat gust]

How do you (288/37)-24?

If you minus a fraction by a fraction their denominators must be the same

[fleet stream]

So 24/37

[flat gust]

So basically

-24/1 x 37

You will get

[fleet stream]

-24/37??

[flat gust]

No it's -888/37

So

[fleet stream]

Okay

[flat gust]

288/37-888/37=?

288-888?

[fleet stream]

-600/37

[flat gust]

Yep

-600/37=8y

now how to get rid of 8

[fleet stream]

Divide 8 to the -600/37=8y?

[flat gust]

Yes!

[fleet stream]

How do I divide it to -600/37?

[flat gust]

Well

[fleet stream]

Does it needs to be 8/37 ?

[flat gust]

When you divide a number by something you can just times by its reciprocal

or the opposite of the number

Ok

let me show example

[fleet stream]

Okay

[flat gust]

Hmmm

-6/2=-3 is the same thing as -6 x 1/2 = -3

-600/37=8y so how do we do that for this

[fleet stream]

296/-600?

[flat gust]

No, it's -600/37 x 1/8

So the opposite of 8 is just 1/8

u just flip it

8/1 = 8

flip it

1/8

[fleet stream]

Oh okay, I thought I need to do the -600/37

[flat gust]

that's the reciprocal of 8

No

That's an ugly number

we dont want that

So

-600/37=8y

is??

[fleet stream]

-600/296?

[flat gust]

Yep!

[fleet stream]

Oh

[flat gust]

Simplify that fraction for me

-600/296=y

simplify

[fleet stream]

By 3?

[flat gust]

Sure

If u want

Just keep simplifying it

by 2 if u want

by 3 if u want

actually

by 2

3 can not go into 296

[fleet stream]

-300/148

[flat gust]

hmm

did u simplify by what

Oh u did it by 2

great

that seems correct

You can simplify it more tho

[fleet stream]

Okay

-75/37

[flat gust]

Yep!

Now you solved it

You're correct

see

[fleet stream]

That’s it?

[flat gust]

Yep that's it

You found x and y

[fleet stream]

Thank you!!

Couldn’t have done it without your help

[flat gust]

No problem

[fleet stream]

Thank you, I could probably do the second one by myself :)))

[glass estuary]

,rotate

[glass estuary]

Is the 2nd equation a valid way to write it?

[manic quail]

It you want to make it more like the upper one, put the "2" inside the "f(x)".

[manic quail]

Great.

[glass estuary]

I thought the entire f(x) is y

Just a bit confused

Wait nvm it clicked

[manic quail]

If you just write, $f(x)_2$, everybody knows what you mean, but it doesn't really show that $f(x)_2$ has anything to do with $x_2$, which it should.

[ocean seal]

veryhappyperson

[glass estuary]

Yeah my bad I get what you mean if I plug in x sub 2 in f(x) I'll get a value that's equal to y sub 2

But as for f(x) sub 2 I can plug any number for x

[manic quail]

yep

[glass estuary]

It doesn't state that I plug in x sub 2

Thanks

Was just wondering if that notation is valid because I don't see it being used often

[sonic cave]

how would i draw c? thanks

[manic quail]

Everything but A.

[sonic cave]

like this?

[manic quail]

No, everything that DOES NOT BELONG to A.

[sonic cave]

ahhh

[manic quail]

$U \setminus A$

[ocean seal]

veryhappyperson

[sonic cave]

im confused sorry

[normal lagoon]

shade the parts of B and C that don't also lie in A

[manic quail]

"U" as well though?

[normal lagoon]

right

[sonic cave]

?

[jade birch]

Or just shade the whole A and everything left unshaded is the answer :d

[sonic cave]

or no

ahhh

[manic quail]

Yes, not shade everything that is in U as well, but A.

[sonic cave]

aight got it, so dont shade in the intersections?

[manic quail]

No, not the ones belonging to A.

Let me draw it in paint real quick xD

[sonic cave]

haha thanks

[sonic cave]

yes,

even the box right?

coz that belongs to U

[manic quail]

Yes.

Just everything that is not in A, is in the complement of A.

[sonic cave]

so, for d,

would it be something like

[manic quail]

Let me repost, I don't want to scroll up xD

[sonic cave]

shade in B union C

so like both of them?

the intersections**

and shade in A as a whole

[manic quail]

No, they mean shade a, and remove the intesections.

Btw, who uses a minus as a setminus? xD

[sonic cave]

got no clue lmao

[manic quail]

Basically, you unify B with C, and get a big area. Then you remove everything from A that intersects with that big area.

[sonic cave]

what about the intersection that crosses from B and C to A?

i did something like this but its most likely wrong

[manic quail]

You look at A, the you subtract everything that belongs to B, and everything that belongs to C.

[sonic cave]

hmm

basically taking out A from the diagram?

[manic quail]

You should procubably do this step by step. First find $B \cup C$, then do A minus that.

[sonic cave]

that seems right

[ocean seal]

veryhappyperson

[manic quail]

Not taking it out xD The red thing is that what is left.

[sonic cave]

oh my god haha

[jovial knoll]

https://www.youtube.com/watch?v=9vKqVkMQHKk&ab_channel=3Blue1Brown

in this video what do he mean tan to the line?

[rigid smelt]

where in the video?

and what is troubling you?

[jovial knoll]

12:47

and how did he even get that equation

the one he is using

[velvet pelican]

It's from the limit definition of the derivative

[jovial knoll]

this one?

[velvet pelican]

Yes

but instead of h, he used dt

And your f(x) = x^3

[jovial knoll]

if i havent learned calculus yet is this the best place to start?

[velvet pelican]

It's quite a good place to start

[jovial knoll]

ok

what does he mean tan to the line?

12:47

[velvet pelican]

Tangent line

means that the line just touches the curve

(this is not the perfect definition but it helps to understand the concept)

[jovial knoll]

oh ok thank you

[echo python]

How can I calculate a reflection angle based on the angle of a line and the angle of a line the other line is going to hit?

basically like this

lets say you only knew the angle of the red and black line, how would you calculate the green line?

[alpine sable]

i don't know physics, but i believe reflections will have reflection symmetry in respect to the orthogonal line to the in this case black line at the point of reflection

[rich basin]

Yes, think of how you would angle a mirror. The angle on each side of a normal to the black line will be the same.

[chrome spade]

https://gyazo.com/4cfeeb8e0d1775feb686385dfbcf21ea?token=63a36057aace98c8f81deec58549bd69

Hello how do I do 3C

[spare wedge]

Help me

[limpid spade]

Don't multipost

Remove 1 post

[chrome spade]

@limpid spade can you help me

[alpine sable]

Can someone explain why 2 + 4 - (-2) is 8
6 - (-2)
6 - + 2

[quaint trout]

@alpine sable why did the -2 become +2?

[elfin hazel]

subtracting a negative number is equivalent to adding a positive number
So: b- (-a) = b + a

[alpine sable]

Because when - is in front of a parenthesis, it changes to +
6 - + 2

[quaint trout]

This is not a thing

[limpid spade]

-(x+3x^2) all signs change inside

[alpine sable]

Look, it could be either
6 - (-2)
6 - + 2
6 - 2 or 6 + 2

[chrome spade]

can someone help me .-.

[limpid spade]

-(-)=+

[quaint trout]

A minus sign in front of a bracket changes all the signs in the bracket if you distribute the minus sign, but then the original minus sign disappears. So -(3-5) = -3+5

And -(-2) = +2

So if you change the - to a plus, the - in front disappears because you distributed it in

[alpine sable]

okay

[foggy onyx]

What is Monomial, Binomial and Trinomial?

i need a lighter answer than google

[chrome spade]

just remember double negative becomes a positive @alpine sable

[quaint trout]

Refers to the number of terms. Mono means one, bi means two, tri means three terms

[alpine sable]

yeah I think that's better to remember

[elfin hazel]

i think you confused this with "shifting the -ve sign into the parenthesis"
ie. -(2x+5) = (-2x-5)

[alpine sable]

-(3-5)

whwat

-(3-5)
-(-2)

2

[foggy onyx]

Thanks another question (btw this is not a exam im asking for im learning algebra rn)

Which is easier to solve Mono, Bino or Trino

[limpid spade]

Mono normally

[quaint trout]

You can't solve an expression. You can only solve an equation. Monomial refers to an expression with one term

If you mean like a monomial = 0, then yeah, that's normally easiest

[foggy onyx]

Is shapes invovle in algebra also?

[quaint trout]

Idk what you mean

[gray isle]

algebra is everywhere

[foggy onyx]

nvm

[elfin hazel]

a) no black means all balls have to come from red or blue, so
P=7C4 / 10C4 = 1/6, where 10 C 4 represents total number of ways to choose 4 items from a group of 10 items

b) Opposite of part a), so
P=1- [7C4 / 10C4] = 5/6

c) using Inclusion–exclusion principle (https://en.wikipedia.org/wiki/Inclusion–exclusion_principle), the only time this does not happen is when either (case A: no black balls are picked), or (case B: no red balls are picked), but you must add back the probabiltiy when (case C: both no black and no red balls are picked)
ie. P= 1 - P_A - P_B + P_C
However, if u notice, theres only 2 blue balls, thus Case C is impossible and P_C = 0"
P = 1 - P_A - P_B = 1 - [7C4 / 10C4] - [5C4 / 10C4] = 17/21

[alpine sable]

6 / 2(1 + 2)
do you do

6 / 2 * (3)
6 / 6 = 1

or 6 / 2 (1 + 2)
6 / 2 * 3
3 * 3 = 9

[elfin hazel]

verified with a crappy simulation (accurate to 3dp) @chrome spade

[chrome spade]

oh i see, tysm

[limpid spade]

First one

[gray isle]

the notation is ambiguous,
though I. would interpret it is the latter

[alpine sable]

so it's 1

[gray isle]

resulting in 9

[alpine sable]

6 / 2(1 + 2)
do you do

6 / 2 * (3)
6 / 6 = 1

or 6 / 2 (1 + 2)
6 / 2 * 3
3 * 3 = 9

here

how is this 9

[limpid spade]

Oh wait yes 9

You do the operations from left to right if it's like x or /

[alpine sable]

Are the parentheses being removed? Otherwise it's weird

[gray isle]

because the division slash doesn't really imply grouping around any chunk that comes after it

[alpine sable]

6 / 2(1 + 2)
6 / 2 * (3)
Is this wrong?

[gray isle]

i would interpret $6/2(1+2)$ the same way I would $6/2 \times (1+2)$

[ocean seal]

ℝamonov

[gray isle]

I would consider that to be fine

[alpine sable]

6/2 * (1 + 2)
6/2 * (3)

either u go with 6/2 or 2*3

[gray isle]

your go from left to right at this stage

[alpine sable]

don't you take the parentheses first?

[gray isle]

no

the description in the order of operations only refer to stuff inside parentheses.

when stuff is adjacent to parentheses, multiplication is inplied

6/2 * (3) is no different than
6/2 * 3

[alpine sable]

bruh

@gray isle

What if it was

6+2 * (1 + 2)

[gray isle]

well multiplication comes before

addition

[alpine sable]

6 + 2 * (3)

[elfin hazel]

when it comes to 6/2 * (3), first the term inside the brackets are evaluated, then the brackets are removed, and the equation is evaluated normally (multiplication & division first, left to right, followed by subtraction & addition, also left to right)

so the next step should be: 6 / 2 * 3
ie. remove the brackets
Then just evaluate from the left, one by one (6 / 2 * 3 = 3* 3 = 9)

[alpine sable]

magical how the parentheses was removed

ok let me read that

pls

[alpine sable]

yeah still same problem

you're claiming
6 + 2 * (3) = 6 + 2 * 3

[gray isle]

yes. theres nothing wrong with that

[elfin hazel]

yes, as I said, you evaluate the terms inside the brackets then remove the brackets, then evaluate multiplication and division operators first, then addition and subtraction

[alpine sable]

never heard about that rule before

[elfin hazel]

well now you know :0

[alpine sable]

so basically (4) = 4

[elfin hazel]

yes

[gray isle]

parentheses and grouping symbols can be used to override the other order of operations. if they aren't needed to represent what you want, you don't need to write them

[alpine sable]

yeah so I learned

6/2 * (1 + 2)
6/2 * (3)
6/2 * 3

At first I thought u had to * into the parenthesis

but as (3) = 3, you do that first

[sonic cave]

would this be false?

<@&286206848099549185>

[noble sinew]

Why do you think it is false?

[foggy onyx]

Hey everybody, Whats the difference between Pre-Algebra and Algebra. I wanna lighter answer than google

(This is not a exam or something im just learning algebra rn)

[alpine sable]

i don't know what pre-algebra is. algebra is the study of algebraic structures

[foggy onyx]

okay then whats advance algebra

[alpine sable]

is that a set or a multiset? either way it should be a straightforward application of the definition

[alpine sable]

idk

i don't think the term "advance(d) algebra" has a usual meaning, probably depends on context

[foggy onyx]

Oh okay thanks

[foggy onyx]

okay im back

im on a sequence part

how do i get thr value of anth and the n

[wary harness]

A gold cylinder weighs 1.2 kg (rounded to a decimal point). The density of gold is 19.3 g / cm3 (rounded to one digit after decimal point)

a) If the radius of the base of the cylinder is 2.0 cm (rounded to 1 digit after the decimal point), what is the height of the cylinder?

b) If the height of the cylinder is 6.5 cm (rounded to 1 digit after the decimal point,) what is the lower limit of the radius of the base of the cylinder?

Can some1 help me with this?

It seems unsolveable for me

[half epoch]

What is the formula for the mass of an object?

(The one involving density that is)

[sonic cave]

how could i dissprove this? any examples?

[half epoch]

The channel is obv used

[sonic cave]

what do u mean bro

[velvet pelican]

There is already someone asking a question in this channel, post your question in another channel

[echo python]

I'm currently trying to calculate β, https://i.imgur.com/C5fX9ZM.png but for some reason angle as α and atan as δ wont work new_angle = (360 - angle-atan*180) % 360 https://i.imgur.com/ccWYdBD.png

Ive been trying over 30 variations of the formula

nothing works

I know this is more of a physics problem, but I hope y'all are able to help me out

[wary harness]

<@&286206848099549185> can one of u help me with this?it seems unsolveable for me

[zenith wagon]

Hi does anyone have experience with solving simultaneous differential equations with Laplace?

I understand the approach, which is Laplace transform both coupled ODE equations, and then sub in initial conditions

next is substitution or elimination until Y(s) or X(s) is obtained as the subject on LHS, whereas the RHS is in terms of s. Lastly, inverse LT to get the particular solutions

is this correct? I tried it and I always got wrong answers

[alpine sable]

Lucas will be helped to install the terrace with tiles. The terrace should be shaped like a rectangle. It should be 6.30 ml long and 4.20 m wide.

Under the tiles, there should be a layer of gravel of 15 cm.

How many sacks of gravel should Lucas and his father buy?

[ocean seal]

Results provided by WolframAlpha

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

Requested by marcel#6496

Results provided by WolframAlpha

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

Requested by marcel#6496

[cinder lily]

do you know any formula with mass density and volume?

[proud bough]

There are four chickens. Each pair of the chickens fights, a fight ends in either a Win for a Loss for a chicken, and there's no tie.
After the fights, some chickens get the Chicken King title. A chicken is award the title if:
For each of the other chickens, it needs to:

1. Win against the opponent.
2. Or, if it loses, it needs to win against the chicken who won against that opponent.

Prove that there can't be 4 chickens with the Chicken King after the tournament.

[steep spade]

Someone please check this.
If there is a 1/2500 chance of getting a biome key when a monster dies, how many monsters need to die before the chance of getting a biome key is 99%? This is for a game

I got 11,511
I used p=1-(2499/2500)^n
Where p is 0.99
n is the number of monster deaths

[proud bough]

yeah

[wary harness]

Density m/v and for which troup volume u mean the cylinder 1?

[steep spade]

@proud bough yeah as in i was right?

[proud bough]

yeah

[steep spade]

ty

[alpine sable]

Can anyone help me understand how to find angle v?

[jade birch]

Find x, and then know that x+v=180

[alpine sable]

Ah of course, thank you

[wary harness]

x+v=180
And v=w

[raven valve]

-0.04 in step 1

[final fulcrum]

quick question friends, how would i know if this is being rotated counterclockwise or clockwise

[alpine sable]

By default i think you assume its counterclockwise

[final fulcrum]

is there any way to tell tho? based on j seeing the rotation?

[alpine sable]

Wdym

[final fulcrum]

OH SHIT ITS 180

[alpine sable]

Rotating 90 deg counterclockwise is the same as rotating 270 deg clockwise

[final fulcrum]

SMALL BRAIN OF ME

[alpine sable]

Oh yeah this is a 180 deg rotation so it doesnt even matter lol

[final fulcrum]

if its 180 then. that makes sense. bc i was like huh couldnt u do it both ways

sorry for wasting ur time, thanks for helping me out

[short turtle]

are law of exponents, multiplication of polynomials, division of polynomials, and special products part of algebra

[robust phoenix]

hey

why does it equal 5 ?

,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!

[alpine sable]

Expand out the parenthesis

You get 4^2+3^2 under the square root

[alpine sable]

sqrt(-15)=sqrt15 * i

[hollow harness]

I got -17 -23.237900i

[robust phoenix]

huh

i got

[hollow harness]

Idk

[short turtle]

are law of exponents, multiplication of polynomials, division of polynomials, and special products part of algebra
yes or no

[alpine sable]

Yes

[robust phoenix]

i got 16+(3i)^2

[alpine sable]

You forgot the minus sign

[hollow harness]

How tho?

[alpine sable]

Should be 16-(3i)^2

[hollow harness]

What is ^ mean?

[robust phoenix]

to the power of

[hollow harness]

Ok

[robust phoenix]

i think its a '+'

let me check agian

[alpine sable]

(3i)(-3i)=-(3i)^2

[hollow harness]

So it’s 16 +or- 3i to the power of 2?

[robust phoenix]

it equals 16-9i^2

[hollow harness]

Ok

[robust phoenix]

i think the power of 2 is for the i only not the 3

oh yeah for all

because (3i)^2=9i^2

ok so now

16-9i^2 what do we do then

sqrt it

so

4-3i

[hollow harness]

My teacher responded and said it was -17-6i square root of 15

And I got it right when I typed it in

[robust phoenix]

nice gj

[alpine sable]

16-9i^2=16-9(-1)=25

[robust phoenix]

how do you get it to =25

[alpine sable]

16-9(-1)=16+9=25

[robust phoenix]

um where is the i though

im just way to stupid

which class is this so i can go study it?

[hollow harness]

I swear I struggle with the easiest ones

Can someone explain in depth how to solve these

[robust phoenix]

1.73205081 i

https://www.quora.com/How-do-you-find-the-square-root-of-negative-3

[hollow harness]

I typed that

It said I correct

*incorrect

[winter bay]

Type i root 3...

[hollow harness]

That worked

But how?

[winter bay]

Wdym how

Sqrt -1 is i

[hollow harness]

Ok that

But some of these problems are hard a

*af

[winter bay]

How

Show me a difficult one

[hollow harness]

I’m not good at understanding

[winter bay]

Eh it's fine

Just know the sqrt -1 is i

[hollow harness]

Here’s one

[winter bay]

What are the prime factors of 28

Question meant for u

[hollow harness]

Idk that’s the thing

My teachers aren’t good at explaining

[winter bay]

U dont need to explain prime factors

What numbers multiply to be 28

[hollow harness]

7x4

[winter bay]

Yep

Which of those are perfect squares

[hollow harness]

4

Makes 2

[winter bay]

Yes

[hollow harness]

7 is already simplified

[winter bay]

So 9sqrt 28 equals 9*2 sqrt 7

But it's -7

Which is -1 * 7 right?

[hollow harness]

Ig

[winter bay]

So what's the sqrt of -1

[hollow harness]

I right?

[winter bay]

Mhm

So now just multiply all of em

U have 9, 2, i, and sqrt 7

So multiply em

[hollow harness]

18i?

[wary harness]

No1 can help me with this ?

[winter bay]

18i rt 7

$18i\sqrt{7}$

[ocean seal]

hiidostuff

[winter bay]

Like this

[wary harness]

@winter bay can u help me with my problem?

[winter bay]

I cannot

[wary harness]

My brain is exploding with that

I cant solve it

[winter bay]

Well what class u in

[wary harness]

11

[winter bay]

I mean math class..

[wary harness]

Wdym math class

[winter bay]

Like what math class are u taking

Alg 1? Alg2? Precalc?

[wary harness]

measurements and measurement accuracy this is the chapter

Im in currently

[alpine sable]

I think my error is in the concavity section

f(x) is concave down when f'(x) is decreasing right?

[gray gorge]

Is this the graph of f or f'?

(I'm assuming f')

[hardy vault]

Could anyone shed some light onto these sums?

[gray gorge]

Are you looking for anything in specific?

[hardy vault]

I’m confused as to how they constructed each summation, and where they get all the scalars from

[gray gorge]

Do you know the definition of a linearly independent subset of a vector space?

[cinder lily]

get a formula for the volume for the cylinder and apply the mxd = v formula

[hardy vault]

yup

[gray gorge]

It's precisely that

They're checking the definition

[balmy light]

i hope this channel is free

P = 1/4 i got that already

what i need help in is this

can someone please tell me why we are not doing the curve c2 - curve c1?

the marking scheme shows that, they are using the volume formula for the curve c1 only

can someone please explain the methodology?

<@&286206848099549185>

[gray gorge]

Do you recall the formula for the volume of a solid of revolution

[balmy light]

yeahh

@gray gorge i know how to apply the forumla

i dont get why we are ignoring the second curve

[gray gorge]

Are we?

[balmy light]

yeah the marking scheme just simply ignored the c2 curve

thats what they did

[gray gorge]

Strange

Nothing else?

[balmy light]

𝜋\int{}y\power{2}dx

[balmy light]

lemme send you the full answer

there is this also BTW

but idk where the -1/64 came from

[gray gorge]

Well from the 3rd line onward it seems like it's dealing with curve C_2 though

[balmy light]

wait yeah

they intergrated both separeatly

[gray gorge]

Yeah

That's how it's supposed to be

[balmy light]

yeah yeah wow

i am blind

thanks man

[gray gorge]

np

[jovial knoll]

does anyone know a good course on calculus or stuff i need to take to learn quantum mechanics? i prefer videos but if there is a really good book please let me know

[echo python]

<@&286206848099549185> need some help with this one! Sorry for the ping

[gray gorge]

Introduction to Quantum Mechanics by David J. Griffiths

[jovial knoll]

is that a book or course?

[echo python]

considering there's a middle name, probably a book

[gray gorge]

Book. It starts off fairly basic, but now that I'm reading your question a bit more carefully, how much calculus do you know

And linear algebra / introductory probability theory

[jovial knoll]

i know a bit like simple derivatives and integrals not much. I know limits.

[gray gorge]

I usually recommend at least a course in calc 1 and a bit of calc 2 and some introductory linalg and prob theory

[jovial knoll]

what about pde?

[gray gorge]

Gets introduced in the book I think

Basic level

[jovial knoll]

do you have a course on the pre req for quantum mechanics

[manic quail]

Just out of interest, have you studied physics before? I mean like Thermodynamics, Mechanics, ...

[jovial knoll]

yeah high school physics

i need more right?

[manic quail]

Yes.

[gray gorge]

I think most physics undergrad programs offer the courses I mentioned

[jovial knoll]

oh ok thank you

[gray gorge]

Yes

[jovial knoll]

do you know any good ones online?

[manic quail]

I wasn't referring to you, @gray gorge xD

[gray gorge]

Not that I can think of rn but you could check out #resources or #books-old maybe you'll find something there

[jovial knoll]

ok thank you

[gray gorge]

oops sorry

[dusty robin]

I currently have 0.0146 coins and I get 0.00198 coins per 24 hours. How many more hours till I get 0.016 coins

[gray gorge]

ask yourself: how many coins do you still need? how many coins do you get per 1 hour?

[civic elbow]

Hello, how would you solve and what would be the answers of these 2? Thanks

[stoic hound]

A zero of the numerator is just a zero

A zero of the denominator is a place where it blows up

Neither are holes

What do you think happens in the (c) scenario?

[iron raft]

could someone explain

[wide coral]

<@&286206848099549185> can anybody help me and my callsmate in the 384kbps call?

[prime sluice]

I am supposed to get the area of a triangle drawn with the given points throufh a determinant but the answer is supposed to be 12 yet i always get 24

Nvm i forgot to half it

[eternal shadow]

I am studying for the SAT

I know I did this stuff before

"In the figure above, RT = TU. What is the value of x?"

so that means we have an isosceles triangle

so angle TRU and TUR are both gonna be 33 degrees

now here is where I went wrong

I did 180-114 for angle STR

so I thought angle STR was 66 degrees

then I said this part was 97 degrees (31 + 66 - 180)

then I said the other part was 97 degrees

then I did 33 + 97 - 180 and I got 50 degrees for X

why is that wrong?

[frozen flume]

Why

[eternal shadow]

use a different channel

please explain what I did wrong soeone

[wary harness]

I already did that but I aint solving it right,I tried a couple ideas

[eternal shadow]

ping me if you know

[cinder lily]

you sure?

[eternal shadow]

<@&286206848099549185> ^

[cinder lily]

convert grams to kg

[wary harness]

I have the answers of almost every exercise in the end of my book but only the answer and not the solution. None of those matches with my solutions

[cinder lily]

Ok

[wary harness]

Maby u can try it

I prob have done smth wrong

[cinder lily]

yeah send it

[wary harness]

A gold cylinder weighs 1.2 kg (rounded to a decimal point). The density of gold is 19.3 g / cm3 (rounded to one digit after decimal point)

a) If the radius of the base of the cylinder is 2.0 cm (rounded to 1 digit after the decimal point), what is the height of the cylinder?

b) If the height of the cylinder is 6.5 cm (rounded to 1 digit after the decimal point,) what is the lower limit of the radius of the base of the cylinder?

[eternal shadow]

bruh

can you use a different channel

[wary harness]

If ur so annoyed

U got 8 more channels

So yh

[cinder lily]

i can help you after :D

[eternal shadow]

thanks

[eternal shadow]

I was here first :3

[wary harness]

I have here since 2am trying to figure out this shit and Im going nowhere

[eternal shadow]

good for u

idrc

[wary harness]

Are u here before 8 am?

If not stfu

[eternal shadow]

different timezones

[wary harness]

And get out

[rapid mist]

bro shut up, no one cares

[eternal shadow]

who are u

[rapid mist]

stop being mad

[eternal shadow]

wtf

[rapid mist]

stay calm

[eternal shadow]

thank you 👍

[rapid mist]

you got so mad when i sent a question

[eternal shadow]

idk who you are

[wary harness]

@cinder lily ping me if u are able to solve it please

[cinder lily]

do you want the answer

the answer should be 4.947 (822065)

[wary harness]

Not the answer

I already got that

I wat the solution

[cinder lily]

yikes

[wary harness]

I want to know how to do this shit

[eternal shadow]

Lol

Just figure it out

[wary harness]

Its hard triggering me rn

[cinder lily]

Can you send a picture of the question

It should be correct ...

[wary harness]

Its albanian

Do u understand albanian?

[cinder lily]

[wary harness]

I translated it from albanian to english

[cinder lily]

uh

uh yeah send the translated version over lol iguess

[wary harness]

Wdym the original one

?

[cinder lily]

i mean the english version

[wary harness]

Thats the english version

A gold cylinder weighs 1.2 kg (rounded to a decimal point). The density of gold is 19.3 g / cm3 (rounded to one digit after decimal point)

a) If the radius of the base of the cylinder is 2.0 cm (rounded to 1 digit after the decimal point), what is the height of the cylinder?

b) If the height of the cylinder is 6.5 cm (rounded to 1 digit after the decimal point,) what is the lower limit of the radius of the base of the cylinder?

[cinder lily]

oke let me re inspect it

[wary harness]

In the end of my book it says that the answer for a)4.95cm and b)1.7cm

I've done some stuff and still doesnt matches

[cinder lily]

yeah 4.95

thats what i sent lol

this is for the first part

for part b

it says 6.5 rounded to 1 digit after decimal point

so 6.45 and 6.55 will be rounded to 6.5

since we are dividing by the heigh

if we divide by a smaller number, we get a bigger result

e.g 4/2 = 2 but 4/1 = 4

so let height = 6.45

and calculate radius

and the answer is 1.751689694

@wary harness

[wary harness]

I want a solution

[sage jacinth]

thats so weird how they rounded the answers down

[wary harness]

Not an answer

[sage jacinth]

yea so you just solve for the missing variables using volume

[wary harness]

In the end of my book its just thr answe

[cinder lily]

yeah i sent you a solution

[wary harness]

@cinder lily no offense but ur just repeating what the end of the boom is saying

[cinder lily]

:/

[wary harness]

There is no 6.5

[cinder lily]

If the height of the cylinder is 6.5 cm (rounded to 1 digit after the decimal point,) what is the lower limit of the radius of the base of the cylinder?

[sage jacinth]

$V=\pi \cdot r^2\cdot h$

[ocean seal]

(バカ) baka

[sage jacinth]

right?

so for a they give you the radius

[cinder lily]

do you understand what the question is asking you firstly

[wary harness]

Yh but in the end of the book it says 4.95 not 6.5

[sage jacinth]

so all you need to do is use the equation and solve for h

[wary harness]

Well V isnt given

[cinder lily]

:/

[sage jacinth]

after plugging in

$1200=\pi \cdot 2.0^2\cdot h$

[ocean seal]

(バカ) baka

[wary harness]

19.25×1.15=16.73

[sage jacinth]

wait no i did it wrong

i forgot to factor in density

[wary harness]

If I do the math with the volume formula the answer is 59.10

[cinder lily]

@wary harness you are asking for help on parrt b right... ?

[sage jacinth]

so you just do the same thing but solve for cm3

[wary harness]

Thats is what I've been issuing with

[cinder lily]

Alright

So

[wary harness]

I need with both

[cinder lily]

ok lets start at part a

[wary harness]

I cant solve it

[cinder lily]

For part A

we are given mass and density and the radius of the cylinder, right?

[wary harness]

Yes

[cinder lily]

And now Mass/Density = volume right?

[wary harness]

Yel

Yep

[cinder lily]

Mass = 1.2kg, Density = 19.3g/cm^3

but notice we have kg and grams

[wary harness]

No

Idk how to explain it in english

But 1.2=1.15 or smth

And 19.3=19.25

[novel solar]

can someone help me with IXLs

[wary harness]

Or smth

Just read it again

And u will see what Im talking about

[cinder lily]

well it says, rounded to 1 dp which is fine. but part a is only asking for the height and doesnt care about limits

for part b, you gotta consider the different bounds

[wary harness]

U didnt solve part a already

Dont go to b yet

[cinder lily]

$\frac{1200}{19.3 \times \pi \times 2^2} = 4.947822065$

thats all that part a is

[sage jacinth]

1.2 kg = 1200 g --> D = m/v --> 19.3 = 1200/v --> 1200/19.3 = v = 62.176

then you can take that 62.176 and plug it in and solve for h

$\frac{62.176}{\pi :\cdot :2.0^2}=h$

[ocean seal]

Yes

(バカ) baka

[novel solar]

can someone help me with my ixl's pls

[cinder lily]

for part b, just notice that 6.45 and 6.55 will be rounded to 6.5

[wary harness]

Why 1200/19.3×3.14×2 square?

[cinder lily]

well

have you seen the formula for a cylinder?

[sage jacinth]

because we used the formula for the cylinder

[wary harness]

Ye

I've solved it wrong than

I did it in the wrong way

[cinder lily]

volume of cylinder = pi radius ^2 height

[wary harness]

Thats why I cant find the right solution

[sage jacinth]

with some algebraic manipulation you should get h = v/pi*r^2

[wary harness]

Aight got it ty boys

[cinder lily]

congrats

[novel solar]

can someone help me with my ixl's pls

[cinder lily]

idk what that is but send the question

[wary harness]

For what was this for?

[cinder lily]

9:38

[cinder lily]

part a

[wary harness]

Isnt this part a?

[cinder lily]

both are the same buddy

[cinder lily]

9:38

[sage jacinth]

@novel solar this seems fairly simple i would suggest reviewing the definition of a ratio because there isn't really a way to explain it without giving you the answer

[wary harness]

V=1200 or 62.176?

[sage jacinth]

v = 62.176

thats how much space you have

but since gold is so dense it doesnt need to take up much which is why it takes up so little space

[novel solar]

my teacher said for are parents to tell us but mine dont understand them

[cinder lily]

[wary harness]

This is the right 1 yh?

[novel solar]

Camilla's Ice Cream Shop sold 13 sundaes with nuts and 15 sundaes without nuts. What is the ratio of the number of sundaes without nuts to the number of sundaes with nuts?

[sage jacinth]

do you know what a ratio is?

[novel solar]

kinda

[sage jacinth]

yes

what do you think it is

[cinder lily]

go to youtube and type ratios

[sage jacinth]

@novel solar

[novel solar]

the number of the hole number?

[sage jacinth]

that definition seems to get the idea, but its too vague for me to confirm

i think you mean the sum of the numbers

but the ratio doesnt always compare to the sum of the numbers

[novel solar]

what dose vague mean

[sage jacinth]

i would suggest watching this video https://www.youtube.com/watch?v=JOZSFwuyqok

[novel solar]

ok

[sage jacinth]

it means really broad

[novel solar]

ok

[violet swift]

<@&286206848099549185>

[cinder lily]

ya

plug in random numbers to find 1 pair of solutions

[sage jacinth]

all possible?

[violet swift]

yea all pairs

[sage jacinth]

i believe theres only one

right?

[cinder lily]

idk

[violet swift]

theres prob more than 1

not rly cuz its no ax + by + c

[cinder lily]

nvm

[sage jacinth]

oh im dumb

ignore my previous statement

[violet swift]

xD

[cinder lily]

hmm

[wary harness]

@cinder lily the b part is 62.176/3.14×r square×4.95?

[cinder lily]

doesnt have any solutions @violet swift

(i think)

[violet swift]

how come

i mean 4/5 and 5/4 is one solution

wait nvm

[cinder lily]

really?

[jade birch]

positive integers

[violet swift]

4/5 + 5/25 is one

[sage jacinth]

yea it has no positive integers

it has infinitely many real solutions though

[cinder lily]

wait

[jade birch]

4/24 + 5/6 =1/6+5/6=1

x=24 and y=6 is one pair

[cinder lily]

hm

[violet swift]

i think there might be some formula or sumthin to find all possible pairs

[cinder lily]

dont think so

[jade birch]

$x=\frac{4y}{y-5}$

[ocean seal]

.itsjustnai

[sage jacinth]

wait i did it wrong

there are positive integers lol

(14, 7) should be one

[jade birch]

y=7 and x=14

yes

But I'm not sure how to find all

[sage jacinth]

i think its the only one

[jade birch]

its not

[sage jacinth]

but i have no idea how to prove that algebraically

[jade birch]

i just gave another one

[jade birch]

[cinder lily]

where is this question from btw

[sage jacinth]

theres 9,9

[alpine sable]

(9, 9)

[jade birch]

y=9 and x=9

[violet swift]

its from previous university like interview

oh 9,9

[jade birch]

y=10 x=8

[violet swift]

oooo

[alpine sable]

Use simon’s favorite factoring trick

You can determine them all from that

[violet swift]

o lemme check it out

[cinder lily]

OH

[violet swift]

dam thats acc so smart tyty

[alpine sable]

Start with the base because that's the easiest

It's a square, what are its sides?

[acoustic valve]

4 × 4

[alpine sable]

So the area is?

[acoustic valve]

16

[alpine sable]

Good, now the sides of the terrarium are triangles

[acoustic valve]

5

× 4

do i just do 20+16 ?

[alpine sable]

That's one side of the terrarium

You have 4 total sides in a square pyramid, not counting the base

But

One side is open

So 3 times the sides plus base gives you the total

[acoustic valve]

so the base = 16
5 × 3 sides of pyramid = 15

or would it be 4

[alpine sable]

No, area of one triangle is how much?

You calculated it already

[acoustic valve]

26+16, so 42

[alpine sable]

Wait

[acoustic valve]

I'm confused lmao

[alpine sable]

What is the area of the triangle

Isosceles

[alpine sable]

Yeah, base times height divided by two

That is 1 side

[acoustic valve]

so that times 3

[alpine sable]

You have 3 triangles like it

Yep

[acoustic valve]

plus the square on the bottom

[alpine sable]

Plus the base which is a square

Yep

[acoustic valve]

20

so 50 is the answer lol

[alpine sable]

30+4×4

[acoustic valve]

that seemed to simple

too*

16

my bad

46

[alpine sable]

See, easy

But so many algebra mistakes make it hard

😁

[acoustic valve]

thank you loll

[alpine sable]

Is this a test??

[acoustic valve]

study guide

[alpine sable]

I cant see the image on the right

[acoustic valve]

for a 10th grade geometry quiz lol

wait

[alpine sable]

But it tells you how to solve it

Find area of obelisk first, which is a triangle

[vale yew]

Anyone good at calculus based physics?

[alpine sable]

Okay, obelisk is isosceles triangle

[acoustic valve]

area is 30 of triangle

is the question only asking for all the areas of the stuff in the image ?

or the entire obelisk

i can't tell

[alpine sable]

First it asks for obelisk, then the pedestal, then base, then total area

Obelisk is right

Pedestal is?

[acoustic valve]

24

these are too easy but the way it words them just confuses me

base is 15

[alpine sable]

Now add them all up for total area

My tip is to read the question 5 times before you start working on it

Or maybe 3 times if 5 seems too much

[acoustic valve]

im just wondering because an obelisk obv 3d, does it want the total area of that

[vale yew]

I literally have no idea how to solve this for the right answer. Can someone help me pls? It's a physics 1 question

[alpine sable]

It says find the area of the visible surface

So no

But tell me, how would you calculate it? You dont know the depth of the image

[acoustic valve]

im not sure because i never took geometry but id add those all up and cube them

id use google to find the area of the pyramid then cubes and add them up 😐

[ionic jewel]

$\frac{1}{2}\theta r^2$

[ocean seal]

bunny

[acoustic valve]

I do not understand

[ionic jewel]

the area inside that arc is 1/2 times the angle in radians times the radius squared

radius is 9 in your case

and thats (2pi)/3 radians

[acoustic valve]

im still confused 😂 so i do 60 times 9^2

[ionic jewel]

where did you get 60?

[acoustic valve]

half of 120

[ionic jewel]

120 is an angle in degrees, you need it in radians

if you dont know how to convert, I provided it for you, but you should look it up for the future

[acoustic valve]

so 120(2pi)/3 = radians?

[violet swift]

@alpine sable

about this again, I'm not sure that simon favorite trick will give all the positive integers

[alpine sable]

it will

[violet swift]

you get 4y+5x=xy correct

subract xy from both sides?

[alpine sable]

there are only a finite number of divisors for any integer

[violet swift]

(5-y)(4-x)=20

[alpine sable]

exhaustion of the divisors gives all possibilities

[violet swift]

is that correct?

[alpine sable]

I have no idea, I haven't worked it out

[violet swift]

xD could u please try 😛

[alpine sable]

ok lol

I might be a minute

[violet swift]

tyty np

[lilac nest]

No 120 degrees is equal to 2pi/3 radians, so you have to do 1/2x2pi/3x9^2

[sly coral]

i have a question, how do you find the CDF of this ?

[acoustic valve]

man im just gonna guess on that question 💀

[alpine sable]

yes that's right

[violet swift]

then find all factors of 20

[alpine sable]

yes

[violet swift]

1,20, 2,10, 4,5, 5,4

but it doesnt give any posivtive values

for x and y

[alpine sable]

huh?

[violet swift]

like

(5-y)(4-x)= 4 * 5

y = 1, x=-1

[oak chasm]

@violet swift Don't forget -1, -20, -2, -10, -4, -5.

[violet swift]

oh

[oak chasm]

There are lots of x, y pairs that work.

[violet swift]

o lemme check

[oak chasm]

Like, take a pair that multiply to 20, say 2, 10. Make 5 - y = 2 and 4 - x = 10.

[lilac nest]

The answer should be 27π, if you want to go on another channel I can explain you the degree-radians conversion, is very easy

[violet swift]

@oak chasm oh tyty i think the problem was that i wasnt using any pairs that were two negatives for 20

@alpine sable i think the solution does work acc tsym!!

[alpine sable]

I don't like to think in pairs like that honestly (although that's fine too)
since 5 - y divides 20, we must have 5 - y = 1, -1, 2, -2, 4, -4, ..., 20, or -20

where ... is the rest of the divisors

since y is positive there aren't many cases to exhaust

[violet swift]

true im pretty sure theres only 6

[alpine sable]

each of those equalities gives an integer y and you just need to check if x is a positive integer when you plug y back into the equation

[violet swift]

👍

[alpine sable]

all of the pairs people came up with before should pop out of it

and more, if they missed any

but it will indeed be all of them

[violet swift]

yessir 5 of those popped out of the equations

[alpine sable]

how do i write f(x) as a maclaurin series

[sly mantle]

@alpine sable use the maclaurin series of cos

[alpine sable]

Thx I got it!

[violet swift]

anyone sure how to solve it?

[acoustic valve]

sometimes it helps

very occasionally

[chrome monolith]

😐

@ a helper

[acoustic valve]

they'll get mad when you ping too early

[chrome monolith]

Aborted can

Hes been waiting for + 15 mins

[ionic jewel]

maybe they also dont want to help when you are generally rude

[ionic jewel]

triangle rule: side length of one side is 0 < d < sum of the other two sides

it should be intuitive if you imagine it (try drawing a triangle of side lengths 1,1,3)

[ionic jewel]

im pretty sure ive helped you on more than one problem, the least you can do is not callthis server useless when you have to wait 10 minutes for someone to help you

[jagged imp]

this channel is occupied but ask your question somewhere else 👍

[ionic jewel]

i mean sure but we help a lot of people, just because no one happened to want to help you doesnt make the server useless

[jagged imp]

bruh i tried to asked you what question you were doing in one of the multiple channels you posted this in

and you didnt respond

[frank plover]

Does anyone see my error? Im trying to take the derivative of V(x^2 +4) /x

Ive been trying for like an hour now 😭

According to photomath i got the sign wrong, i wrote + instead of - at the second and third steps. I dont get why thats wrong tho

This channel was occupied, but pop off

[gleaming granite]

you mean you wrote a plus sign here?

[frank plover]

Yhup

I followed the productrule

[gleaming granite]

the reason it's a minus sign is because of the quotient rule

[frank plover]

Omfg..

I looked at the wrong rule

[gleaming granite]

LMAO

[frank plover]

😐 i hate myself

[gleaming granite]

🤣

[frank plover]

Thanks man 😭❤

[uncut osprey]

Only if people are willing to. It's likely that your question is just not a very pleasant one to do

[chrome monolith]

Ur gonna get a ban bro

[uncut osprey]

She likely doesn't care if it means not getting a response within like an hour

[coral pagoda]

<@&268886789983436800> , so that happened

[glossy island]

👍

[coral pagoda]

Thanks guys

[coral pagoda]

The question isn't too hard. I just forgot all about their request

[uncut osprey]

just unfortunate circumstances ig

[coral pagoda]

Seems that way 🤷

[little cape]

I need the Y position

i keep getting 13L/12 but its saying its wrong

i gave up and its saying the answer is 7L/4

idk why