help-0

[alpine sable]

same as the last one, divide both sides

$x=1:\frac32$

[ocean seal]

Em

[spark zenith]

I just forgot everything what i learned

;-;

[alpine sable]

It's amazing helping dudes.

[spark zenith]

so i need to write x = 1: 3 ?
_
2

Am confused

[alpine sable]

yeah. do you know why or how to solve it though

[spark zenith]

litle bit but im bad at math

[alpine sable]

let's do the last one again
-6x=48

[spark zenith]

ik that part

48:(-6)

[alpine sable]

same idea with this one

except it's not -6, but a fraction

$1:\frac32$

[ocean seal]

Em

[spark zenith]

does this server support dutch?

[alpine sable]

someone might know it

if you have $a:\frac{b}{c}$

[ocean seal]

Em

[alpine sable]

you can write it as $a \cdot\frac{c}{b}$

[ocean seal]

Em

[alpine sable]

$$a\divisionsymbol\frac{c}{b}=\frac{a}{1}\cdot\frac{b}{c}=/frac{a/cdotb}{c}$$

what

$a\divisionsymbol\frac{c}{b}=\frac{a}{1}\cdot\frac{c}{b}$

\frac{a}{1) is the error

Em

ehhhh

[ocean seal]

Em

[alpine sable]

oh )

typo

wait

that's incorrect

let me efit

edit

[spark zenith]

@alpine sable wow you helped me tysm bigbrain

[oak chasm]

Division by a fraction is multiplying by the reciprocal.

As shown.

[alpine sable]

$$a\divisionsymbol\frac{c}{b}=\frac{a}{1}\cdot\frac{b}{c}=\frac{a\cdot{b}}{c}$$

[spark zenith]

what is a fraction in dutch

[sleek elbow]

fractie maybe (google translator)

[ocean seal]

Shaky

[alpine sable]

oh u just add {b} inside the two {}

[sleek elbow]

oh no its breuk wiskunde @spark zenith

I think

[spark zenith]

It says weird things

[spark zenith]

3:4 on a calculator?

[sleek elbow]

$\frac{a}{b}$ that is a fraction

@spark zenith

[alpine sable]

yes

[spark zenith]

Oh ok

Breuk

[ocean seal]

Ladan

[alpine sable]

is it required to add {} when there's a number inside a fraction?

[spark zenith]

I think yes

[sleek elbow]

if you use TeXit, yes

[alpine sable]

I'm trying to learn the bot, lol

[sleek elbow]

yup

[alpine sable]

,, \frac12

[sleek elbow]

$frac{a}{n}$

[ocean seal]

ZED_118

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

[sleek elbow]

that

[alpine sable]

yes

Usually for single strings you wouldn't need braces

[alpine sable]

braces are made for grouping and separation

$\dfrac an$

[alpine sable]

is a brace {}?

$\frac ab$

yes

[ocean seal]

Em

[alpine sable]

and do u have to add one or two dollar signs?

$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

[ocean seal]

ZED_118

[alpine sable]

one works

$\frac{a}{b}, b \neq 0$ $test$ $$test2$$

[wary stream]

If you're talking about latex, one dollar sign is in line text while two creates a new line

And that's when you have other text involved

[spark zenith]

$frac{12}{30}x={8}{5}$

[ocean seal]

Avocadoman

[spark zenith]

oops

[alpine sable]

You missed \

[wary stream]

\frac

[ocean seal]

Shaky

[alpine sable]

$

[ocean seal]

Avocadoman

$\frac{12}{30}x=\frac{8}{5}$

[alpine sable]

Also if you’re writing text, it should be outside of $$

[wary stream]

Also, not the place to be testing latex, use #latex-testing

[spark zenith]

How to solve this help me

[alpine sable]

$Let a = b$ \
Let $a = b$

[ocean seal]

ZED_118

[wary stream]

You can cross multiply

[alpine sable]

avocado same as last one

to to add a new line u just add one more dollar sign
$test1$ $$test2$$ $$$test3$$$ $$$now itll be the same line$$$

[ocean seal]

Shaky

to to add a new line u just add one more dollar sign
$test1$ $$test2$$ $$$test3$$$ $$$now itll be the same line$$$
```Compilation error:```! Display math should end with $$.
<to be read again> 
                   t
l.56 $test1$ $$test2$$ $$$t
                           est3$$$ $$$now itll be the same line$$$
The `$' that I just saw supposedly matches a previous `$$'.
So I shall assume that you typed `$$' both times.```

[alpine sable]

$60x = 240$

[ocean seal]

ZED_118

[alpine sable]

consider dividing by 60 on both sides

[alpine sable]

why does this look so weird?

Compilation error

[spark zenith]

do I have to make it a multiplication because that division has to be different to divide at the last

[alpine sable]

can ya fix it for me?

react with the warning sign

so we can check the errors

although it is pretty obvious

Okay.

[alpine sable]

$\frac{12x}{30} = \frac{8}{5}$ \\
$60x = 240$ \\
$x = 4$

[ocean seal]

ZED_118

[alpine sable]

yeah double $$ on each end of your strs

not triple

@spark zenith \frac85 : \frac{12}{30}

[spark zenith]

$\frac85 : \frac{12}{30}$

[alpine sable]

change to multiplication yes

[ocean seal]

Avocadoman

[spark zenith]

Oh ok

[alpine sable]

it went from 1-2-3-3

and write reciprocal

there shouldn't be any errors lol

does it have to end with double

theres better ways to centre your text also I'd recommend using \[ \] instead of $$ $$. (Reason being is given in https://tex.stackexchange.com/questions/503/why-is-preferable-to).

[a]

[ocean seal]

Shaky

[alpine sable]

magic

[spark zenith]

@alpine sable so 8/5 is 5/8??

[alpine sable]

the second one

12/30 should be 30/12

refer to formula

[alpine sable]

yes and no

$a : \frac bc = a \cdot \frac cb$

[ocean seal]

Em

[spark zenith]

Oh yes now i know i need to write the = first

[alpine sable]

[\frac{8}{5}\divisionsymbol\frac{12}{30}=\frac{8\cdot{30}}{5\cdot{12}}]

[ocean seal]

Shaky

[alpine sable]

good

[spark zenith]

Yeah yeah ik i just forgot everything

[alpine sable]

simplify 30 and 5

Why use an obelus just nest the fractions

is there another way to write divisionsymbol?

No

Technically yes but predefined no

takes too long time to write

it should have a function, like * has cdot

as well as \times

$\division$

Lol

\div is used for divergence

[ocean seal]

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

[alpine sable]

But you could always resort to nesting the fractions

Hi em

hello

plants still growing?

to to add a new line u just add one more dollar sign
$test1$ $$test2$$ $$test3$$ $now itll be the same line$

yes

bruh it didn't work

fix it for me xd

double dollar signs

not triple

as said

im retarded

[alpine sable]

you should read this too

click the link

no

ip grabber

$line one \ line two$

[ocean seal]

Em

[alpine sable]

Also \[ \] as well as $$ $$ unsure about \( \) because I've never used them; Is used to centralise your stuff.

Centre of the page

[oak chasm]

\( and \) is the LaTeX version of $ and $.

[ocean seal]

Shaky

[alpine sable]

to to add a new line u just add two dollar signs
$test1$ $test2$ they should be on the same line $$test3$$

fancy

[ocean seal]

Shaky

[alpine sable]

\\ as well as \newline for line breaks

the text's being annoying

demonstrate

how do i move the text down and why is test3 in the middle?

[placid zinc]

Using double $ is why

[shut helm]

my mind is dead rn what does x equal?

[alpine sable]

just use the distributive law

[placid zinc]

Newline is //

[alpine sable]

its easy

Distribute

[shut helm]

you subtract the numbers right

[alpine sable]

thats because you're using $$...$$

i want test3 to be on the left side

$$...$$ is when u want a new line

[ocean seal]

Shaky

[alpine sable]

oh it actually wrote that lol

[shut helm]

is x = 8?

[spark zenith]

–3x + 6 = 21
how do you do this distributive equation ??

[placid zinc]

Why not plug that onto the original equation, and see if the left side and right side match?

[alpine sable]

-3x + 6 = 21 (-6)
-3x = 15 (divide by minus 3)
x = -5

[spark zenith]

explain it plz

[alpine sable]

Yes and no $$...$$ is used to centralise whatever you have between them on your page, use \\ or \newline to line break

[spark zenith]

can someone explain this to me

[alpine sable]

to to add a new line u just add two dollar signs
$test1$ $test2$ they should be on the same line \test3

[ocean seal]

Shaky

[alpine sable]

cool

you should go to #latex-testing

yeah but i'm gonna go sleep now

Do i need to know at least one angle to solve this?

The length of the hypotenuse of an isosceles right-angled triangle is 16 cm.
(a) What is the length of the other two sides?
(b) What is the area of the triangle?

i dont think so

[shut helm]

ffs i cant figure it out

[alpine sable]

a^2+b^2=16

u know a and b have the same length

,w sqrt(8)

[ocean seal]

Results provided by WolframAlpha

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

Requested by Shaky#9520

[alpine sable]

He just said to substitute 8 for x if LHS=RHS then yes x=8

2.28^2+2.28^2=16

area should be 2.28 * 2.28 * 0.5

[alpine sable]

i just solved it and no u dont coz in an isosceles triangle the 2 sides are the same

Tytytyty

(a) 11.31 cm (b) 64 cm2

no

,w 2.28 * 2.28 * 0.5

[ocean seal]

Results provided by WolframAlpha

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

Requested by Shaky#9520

[alpine sable]

(a)=2.28
(b) = 2.5992

forget it

ion know if this is correct

[shut helm]

im crying why cant i figure this out

[alpine sable]

what the fuck do i do

[spring inlet]

multiplication distributes across parentheses, so 3(2x-4) = 3(2x) - 3(4)

[shut helm]

[spring inlet]

it's the distributive property

[alpine sable]

64

0iq

a^2+b^2= 16
sqrt(a) + sqrt(b) = 16
sqrt(64) + sqrt(64) = 16
8 + 8 = 16
Question a= **8 **

8 * 8 * 1/2 = 32
question b = 32
@alpine sable

[shut helm]

i still dont understand

im hopeless when its past 3 pm

[alpine sable]

@shut helm what is 5(2 + 3)

tell me how to do it

[shut helm]

by 5(2+3)

is it (2+3) multiplied by 5

[alpine sable]

yes, calculate tjat

[shut helm]

or plus 5

[alpine sable]

no

[shut helm]

ok

🤨

[alpine sable]

it's not +5

[shut helm]

its multiply?

[alpine sable]

yes...

[spring inlet]

Yeah, try it out with numbers to convince yourself

[shut helm]

so 2+3 multiplied by 5

[alpine sable]

Now I'm gonna teach you something

[shut helm]

👀

[alpine sable]

In math, there is another way u can handle this problem. Let's say you have 5 * (2 + 3)
You can first multiply 5 with 2 and then plus the product of that with the product of 5 and 3. That is called the distributive law

[shut helm]

hes cooking up something hot

[shut helm]

i think i understand

would this be 3 * 2x tho?

[alpine sable]

yes

[shut helm]

i dont know what x is yet tho 😩

[alpine sable]

also, remember to multiply 3 with -4 like u did with 3 and 2x

[shut helm]

oh

so that would be 5x - 12

?

[alpine sable]

3 * 2 = 5, yes

[spark zenith]

4.(3 +2x)= 12
whelp

[buoyant kayak]

isolate x

[alpine sable]

remove the bracket

(a)=a

[spark zenith]

12 + 8x? = 12

[alpine sable]

3+2x = 12
2x = 10
x=5

[buoyant kayak]

oh 4*(3+2x)?

you put a .

[alpine sable]

oh, is there a 4?

then distribute them

[buoyant kayak]

he already did

just needs to solve now

[alpine sable]

Yes

[spark zenith]

cuz i was in gaming mode so everything lossed in my mind

[alpine sable]

$4(3+2x)=12 \ 12+8x=12 \ 8x=0 \ x=0$

[ocean seal]

Shaky

[spark zenith]

Yes i tought what how i got 0

[alpine sable]

That can happen

[spark zenith]

i need to make 2 same things like that and im done

[alpine sable]

i'm gonna go off now but there will probably come some other helpers to help u

[spark zenith]

wait

is it possible to get a fraction?

in that?

[alpine sable]

yes, you got a fraction as the answer

0 = (0)/(1,+inf)

[spark zenith]

5. (7+ 6x )=49

Is this with a fraction

Cuz i got a fraction in here

[alpine sable]

35 + 30x = 49
30x = 14
x = 14/30

[spring inlet]

depends on who wrote the question

[alpine sable]

notice how you can write everything as a fraction

1 is a fraction because you can write it as 1/1 which is also 1

[spark zenith]

Oh yeah thats true

Im done with my homework tysm

[alpine sable]

when working with polynomials, what is the difference between a monomial and constant

[spring inlet]

Monomial is a single term, constant is a number

[glass lichen]

all constants are monomials, not all monomials are constants

[alpine sable]

so like

-39 is a constant

and 8a^2 is a monomial

[spring inlet]

yep

[slate prawn]

how do i do this

apparently 13-6i is wrong

and i dont know what im doing wrong

[spring inlet]

Seems like you added instead of subtracted

[slate prawn]

pretty much, in class we were told you get rid of the parenthesis my multiplying the 2nd term by -1. making it 7-4i-6+2i

and i just realized my mistake

thanks

[alpine sable]

is 3/4 a constant

and x + y is a binomial

[spring inlet]

that's right

[ashen yarrow]

what does an apostrophe mean

when A B C are matrices

[undone cipher]

that is the transpose

by that i mean

A' is the transpose of matrix A, B'....of matrix B, ...

[ashen yarrow]

oooooh

its been a while since ive taken linear algebra

and in my multivariate stats course we have some matrix review

couldnt figure out for the life of me what that meant

thanks!

[glass lichen]

Typical notation I've seen is $A^T$

[ocean seal]

Mosh

[undone cipher]

that's what i've usually seen as well

[compact coral]

is thhis in use

[undone cipher]

i do not believe so

[compact coral]

okay

can someone tell me if I did anythingn wrong

I hate these

; - ;

[undone cipher]

just looking over it rq i don't see anything in particular that jumps out as incorrect

you seem to have justified your steps properly and you went step by step

though, i think someone well-versed in geometric proofs should confirm that

[compact coral]

okay c:

[alpine sable]

Its 6:47am

and i can't think of the forumla for this

[compact coral]

uh

are you just askingn for answers

???

I dont think thats what this is for

[alpine sable]

im asking for the correct formula

..

[compact coral]

you didnt ask for the formula

you asked for the answer

[alpine sable]

" i can't think of the forumla for this"

[compact coral]

"how long would it take 5 men to move the same amount of chickens"

[alpine sable]

Was inferring im asking for the forumla

lmfao

@alpine sable can you help

Me pls

How can i be of service

my friend

Construct a proof please

[alpine sable]

Hello

Can u help me

hello 😛

I can help

A is 2 sqrt 3

So Az

[compact coral]

a proof

also this sevrer was still in use

wtf

why are 4 people here

[alpine sable]

So B is X

@alpine sable are you listening

Yes

C is y

So a is z

lmao..

[alpine sable]

Yea

B X

Cy

And what is sand d is w

And DW

Yes

Also what abt this

how could you not do it yourself

So basically it’s simplification

[alpine sable]

I was absent today

Basically can they be squared or not

So I did not know how to do it

It’s an new lesson for me

Use Khan academy

Ok

Ty

Love u no homo

Khan academy algebra 1 it probably has everything you learnt and more you probably will learn

Learn it every video is about 6 minutes and it teaches more than lessons

[astral lion]

Hello guys, I would like to ask you for help

[alpine sable]

What help?

[astral lion]

It might be a bit weird request but I need to learn 2nd grade high school mathematics in next 9 hours

I'm taking really important test in 9 hours 27 minutes

[prime badge]

what age is 2nd grade high school

i never learned this

[astral lion]

im 18

[prime badge]

got it thanks

[astral lion]

my classmates are aged around 17

[alpine sable]

2nd grade bro

Are you joking

[astral lion]

im willing to pay the one who teaches me all that

[alpine sable]

We don’t want money

[astral lion]

im just lost

[alpine sable]

Just use YouTube and Khan academy

Go to second grade

Watch all of them and do questions

Boom

[astral lion]

is it possible to do in 9 hours ?

[alpine sable]

https://www.khanacademy.org

Yes

[astral lion]

thanks buddy

[alpine sable]

His videos are short

@astral lion what math is it btw

[astral lion]

like

hm

logaritmic functions

[prime badge]

trigonometry probably

[astral lion]

exponential functions

series

[alpine sable]

Go to algebra 2

I’ll get your redirected

I’ll send the link

Wait

[astral lion]

alright

[alpine sable]

https://www.khanacademy.org/math/algebra2

Series are in algebra 1 if you need them

[astral lion]

Can i change language somewhere, I cant find it

[alpine sable]

You can also learn about quadratic series as well

Language at the bottom

[astral lion]

oh nice

[alpine sable]

@astral lion I wish you best of luck

[astral lion]

thank you bro

[alpine sable]

But it seems odd that you need to do it in 9 hours only

BRO I GOT AN 95perxent on my hw

@alpine sable I’M TANK U

@alpine sable I told you bro

[astral lion]

its because

im kind of lazy

[alpine sable]

I could have got you 100 percent of you let me do it

[astral lion]

and i failed

the year

[alpine sable]

Im just gona work on biolgy

@astral lion dw bro you got this

[alpine sable]

Tuf

Just do better next time

Get yourself back up and ACE this test

Don’t waste time

[astral lion]

it was just because of corona thing, I have a thing when I cant focus when im not in school

[alpine sable]

Make sure to do practice questions as well

I’ll give you more websites

[alpine sable]

Dude I have like five unit one test wish me luck

[alpine sable]

Next week

[astral lion]

this is stuff thats probably going to be there

[alpine sable]

Ur hand writeing is so buitifull

[astral lion]

not my handwriting tho

xd

[alpine sable]

https://www.varsitytutors.com/algebra_ii-practice-tests

Use these too

You can do specific practice questions on the topic you struggle on!

[alpine sable]

Is it online

[astral lion]

im sad

[alpine sable]

What’s wrong?

[astral lion]

its just, i wanna study really complicated stuff and i feel like im just not smart enough

[alpine sable]

@astral lion I’m like you atm

[astral lion]

feels like waste of time studying all this

[alpine sable]

I’m studying algebra 1 and 2

[astral lion]

coz im not gonna make it anyway

[alpine sable]

Just to go onto calculus

So I can do physics

[astral lion]

EXACTLY BRO

[alpine sable]

It’s a long and complicated road

But you have to stay persistent

[astral lion]

self taught huh ?

[alpine sable]

Basically

The stuff at school is useless

I can teach all this stuff by myself

I’m going to self teach calculus!

Once I finish algebra 2!

[astral lion]

i thought im like

[alpine sable]

I have 2 books I’m reading

[astral lion]

only one in the world

[alpine sable]

On calculus

[astral lion]

to have dreams like this

[alpine sable]

What dreams

[astral lion]

i have like 50+ books of complicated stuff and also like beginner stuff but i seem to not be able to put effort into it

[alpine sable]

You just need to find motivation

I found motivation

[rich kraken]

Ye it’s all abt putting time and effort into thinking abt it and trying to teach yourself

[astral lion]

yeah but its hard when everyone around telling u basically that u are piece of trash

[alpine sable]

So now I’m going back to ALGEBRA 1 to restudy so I get a fresh start

And I’m close to algebra 2 now

Once I finish algebra 2 I’m going into calc

And I have 2 books to read for calc 1

[rich kraken]

I mean skill in math is largely a product of how much time you put into refining your understanding by playing around with and thinking abt math and researching stuff

[alpine sable]

Along with YouTube and Khan academy

@astral lion do you also get those dreams where you picture yourself as like this math physics wiz

[astral lion]

im like cursed or sth i swear, i have a problem with studying because im not really able to study by myself, I wish i knew a person who would teach me advanced stuff and explain it so it actually makes more sense

YEAH

I DO

[alpine sable]

Exactly

[astral lion]

i got myself blackboard

[alpine sable]

I can relate

[astral lion]

books

clothes

everything

[alpine sable]

Where are you situated @astral lion

[astral lion]

but im just fkn stupid or something

europe

slovakia

[alpine sable]

Ok

Balkan

[astral lion]

niiice

i like balkan

tbh

[alpine sable]

Bro I can guarantee everyone gets those dreams

But only a few are working towards it

You have to be willing to put the time and effort in

[astral lion]

i am

[alpine sable]

Are you

[astral lion]

but im literally physically unable

[alpine sable]

How?

[astral lion]

to learn new stuff

myself

[alpine sable]

Are you handicapped

[astral lion]

yes

mentally

[alpine sable]

What handicap

ADHD autism

[astral lion]

im not sure what are these called in english so imma just explain

[alpine sable]

Is it Asperger

Explain to me what mental handicap is it

@astral lion honestly though we shouldn’t be wasting time you’ve got a test coming up

[astral lion]

bipolar, i cant focus on stuff when im not 100% confortable with my surroundings

and also

depression

[alpine sable]

Are you diagnosed or is it a teen phase

[astral lion]

like softer level of schyzophrenia

diagnosed

[alpine sable]

Wait you said you were 18 right?

[astral lion]

yes

[alpine sable]

18 on ALGEBRA 2?!

[astral lion]

im struggling with this since i was in elementary school

[alpine sable]

You should be on calc 1.5

[astral lion]

coz im oldest in my grade

[alpine sable]

Ohh

[astral lion]

in my country its kinda weird

its normal here

i should go on collage when im 21

[alpine sable]

Diagnosed

What is life like in Slovakia

What’s the daily routines

[astral lion]

wdym

[alpine sable]

So like do you just do the same thing everyday

What do you do after school

[astral lion]

pretty much same stuff for last 6 years

[alpine sable]

Like what

[astral lion]

playing video games

it might sound stupid but

its relief

[alpine sable]

Same, but I eventually stopped

You have to never forget this

This helped me too

[astral lion]

after long day of pain caused by my conditions

[alpine sable]

You will NEVER EVER get satisfied with videogames

Maybe In moderation sure

[astral lion]

i mean they are pretty fun to play

i dont want to play them

[alpine sable]

But you will never go like , I am done that was a fun session on your own

[astral lion]

but i kind of have to

[alpine sable]

So it’s more of an addiction

[astral lion]

not like that

[alpine sable]

There are probably like a lot of lurkers watching us chat rn 😂

[astral lion]

i mean, i seem to not be able to find something that has this kind of "helping" effect on me

haha yeah prob

[glass lichen]

yeah cause it's a public help channel...

[astral lion]

sorry sir

[alpine sable]

If anyone needs help they can ask

And I’ll be glad to help if can

[astral lion]

if its not allowed or something i can stop

[alpine sable]

I don’t think it’s a problem

You need a serious lifestyle change dude

[astral lion]

yes i know

[glass lichen]

Just talk in dms or one of the social channels instead of a help channel, makes it hard for people to realize the channel is free

[astral lion]

but i have noone so

[alpine sable]

Do you want to move to dms?

[astral lion]

yes brother

[alpine sable]

It seems we are disturbing the peace here

y = 4x^2 +8x + 7

Can someone help me on completing the square on this?

You -7 first

right

so then I get y -7 = 4x^2 + 8x

now I divide b/2 and square

I’m not good at completing

I only factorise

So divide by 2

Then square it

Which is 16

+16

Then add that to the other side

right so now I have y +9 = 4x^2 + 8x + 16

now what?

Let me think

I don’t have a lot of practice here

I think you factorise

yeah, with whatever b/2 was

Then square root both sides

@alpine sable factorise into (x)^2=y

Square root both sides

if it were just x^2+8x+16, then the next step would be to do
(x+4)(x+4)

Yes

but it's 4x^2

I don't know how to handle that

do I just get 4(x+4)(x+4)

Well what are we factorising here

[spring inlet]

8, and 16 are both divisible by 4

[topaz scaffold]

Divide by 4 all the way back here

[alpine sable]

can I just not?

like handle it later

What they mean is that you can simplify the equation

[spring inlet]

sure if you like to suffer

[alpine sable]

Before it began

I have a test tomorrow and I don't want to do any new techniques that I don't feel comfortable with yet

So it becomes easier

[topaz scaffold]

Oof too many people here imma dip

[glass lichen]

Too many cooks in the kitchen

[alpine sable]

@alpine sable most importantly we factorise here

[topaz scaffold]

Can you complete the square with x^2 + 2x?

[glass lichen]

no

[alpine sable]

We need to square root it afterwards

Then -4

[glass lichen]

the question says nothing about factoring...

[alpine sable]

no tutorial I've watched has mentioned square rooting on this

[glass lichen]

so dont make up shit

[alpine sable]

Factoring is part of completing the square

[glass lichen]

common factoring is yes

[alpine sable]

y +9 = 4x^2 + 8x + 16

I didn’t mean solving by factoring

[glass lichen]

$y=4x^2+8x+7 \ =4(x^2+2x)+7$

[alpine sable]

what is the next step after that

[ocean seal]

Mosh

[glass lichen]

what number do I need to make the thing in the brackets a perfect square?

[alpine sable]

You need to factorise

I don't know most of this is just memorized steps

I'm sure your method works

but I need to pass this test tomorrow

[glass lichen]

so you cant think for yourself?

[alpine sable]

so i am sticking with the one I've memorized

@alpine sable my completing the square knowledge is horrible

[alpine sable]

I don't understand how it's working underneath

[glass lichen]

Ok... so why are you asking for help then?

[alpine sable]

So I can pass the test?

Does it say in the question about completing the square

[glass lichen]

yeah but you just said you memorized the steps.....

[alpine sable]

I can help without actually doing the question

Does it say in the question do it by completing the square

[alpine sable]

with coefficients that are not greater than 1

[alpine sable]

it's a plot on the graph question

so I need it in vertex form

which means I need to complete the square

[glass lichen]

yes, and I was trying to show you the method but then you said this

Im not going to help someone closed minded

[alpine sable]

you started out differently

[alpine sable]

i'm not closed minded, I just don't have time to do this new method

[glass lichen]

Ok then gl

[alpine sable]

I need to pass the test

[uncut tapir]

How does it work underneath?

What do you get if you expand
(ax + b/(2a))^2

[alpine sable]

This is algebra 2 which I haven’t learnt in depth

I’m unable to help further because of my ignorance

yeah I didn't know what a quadratic equation even was until like 2 weeks ago

[uncut tapir]

All you are doing is converting a quadratic from one form to another

[alpine sable]

I appreciate your attempt to help though, I'll come back later and look into your method after the test

[topaz scaffold]

The thing is, I don't know any other method of completing the square besides the one Mosh did

I'm not sure how a square root plays into completing the square

Either you find the tutorial again or you learn a new method at this point

[uncut tapir]

The coefficient of x^2 needs to be a perfect square

If not, you factor it out

Otherwise it ends up ugly

[alpine sable]

the steps that I learned are

1. move constant to other side of equation
2. divide b by 2, then square it. Add this result to both sides
3. Now you can factor with whatever b/2 was, so (x+2)^2 if b was 4

@alpine sable you want to know how to solve

Go to Khan academy

Simple

[uncut tapir]

Your step 2 is a short cut

That's why you don't understand it

[alpine sable]

https://youtu.be/bNQY0z76M5A

@alpine sable

[glass lichen]

$y=4x^2+8x+7 \ =4(x^2+2x)+7 \ =4(x^2+2x+1-1)+7 \ =4(x+1)^2-4+7 \ =4(x+1)^2+3$

[alpine sable]

This guy is a legend

[ocean seal]

Mosh

[split slate]

$y=-3sin(2x)$

[ocean seal]

HappyAlt

[glass lichen]

\sin

[alpine sable]

Is this calculus

[glass lichen]

clearly not

[split slate]

How would I find the dilation factor (y-axis) of this?

[alpine sable]

What is dilation factor

[glass lichen]

you mean vertical stretch/compression?

or horizontal

[split slate]

I honestly don't know

[alpine sable]

your starting method is different and I don't get how you get from 1 to 2

my method is this y = 4x^2 + 8x + 7 y -7 = 4x^2 + 8x 4 -7 +16 = 4x^2 + 8x + 16 4 +9 = 4x^2 + 8x + 16

[topaz scaffold]

Trig also called pre calc in America

[alpine sable]

@alpine sable did you watch the video

and all i want to know rn is what I do after that last step

[glass lichen]

I factored 4 out of the terms with x's in them

[alpine sable]

I’ve done trig but I’ve not done pre calc

right but you don't have to do that

right

[glass lichen]

you dont have to, however it gets it into vertex form

[topaz scaffold]

Welp different schools teach it differently

[alpine sable]

right the method I know is this

[uncut tapir]

No offense but I think you need to relearn completing the square I think you rely too much on shortcuts

[alpine sable]

y -7 = 4x^2 + 8x
4 -7 +16 = 4x^2 + 8x + 16
4 +9 = 4x^2 + 8x + 16```

[glass lichen]

whereas what you're doing will do it more haphazardly

since you havent gotten the a value yet

[alpine sable]

I would love to actually understand what's going on

[alpine sable]

I’m not in America..

but my test is tomorrow

I need to pass

I'll learn that method later

[uncut tapir]

That's the reason why, you're just memorising the shortcut

[alpine sable]

You can’t get good on the test if you can’t do it properly

[topaz scaffold]

Cool, do you have free healthcare?

[alpine sable]

right I am acknowledging that I do not have the time to learn the other method right now

Yes I do

Free healthcare

[topaz scaffold]

Cries in American

[glass lichen]

$y=ax^2+bx+c \to y=a(x-h)^2+k$

[ocean seal]

Mosh

[alpine sable]

and to be fair, almost every math tutorial I find just teaches this stuff in terms of memorized steps/formulas

which is a big reason I don't understand what's going on much

[alpine sable]

Do practice questions

[glass lichen]

clearly at some point you need to factor out the a, so might as well do it first

[alpine sable]

And look at the solutions

[alpine sable]

how would I do it when I'm here

y = 4x^2 + 8x + 7
y -7 = 4x^2 + 8x
y -7 +16 = 4x^2 + 8x + 16
y +9 = 4x^2 + 8x + 16

You get used to all different scenarios

I just need an answer on what the next step is for this is guys
y +9 = 4x^2 + 8x + 16

[uncut tapir]

Worst case scenario, just try to find the h and k that work for the given equation

[glass lichen]

you dont add 16 to each side... you had 4

[uncut tapir]

That's at least a principled method you can memorise easily

[glass lichen]

since you need (2x+2)^2 in your method

[alpine sable]

you divide b/2, then square it, then add that

8/2 = 4

^2 = 16

add 16 on both sides

[glass lichen]

yeah that's wrong

[alpine sable]

every tutorial I have seen says that

[glass lichen]

4x^2+8x+16 is never going to be a PST

[alpine sable]

https://youtu.be/prx_Bf2hakw?t=417

[uncut tapir]

Another thing I'd recommend is looking at the proof for the quadratic formula

[alpine sable]

yea thats the main way of deriving it

Derive it

[uncut tapir]

That's basically the most generalised completing the square you can get. If you follow each step, you can complete the square for anything

[alpine sable]

what step comes next

https://www.youtube.com/watch?v=EBbtoFMJvFc

y +9 = 4x^2 + 8x + 16

this one is even visual

[alpine sable]

yes I have seen that

the only thing I am confused on

is when the coefficient is greater than one

if it were just 1

it would be (x+4)(x+4)

easy

but it's' not

so what to I do with y +9 = 4x^2 + 8x + 16

so first thing i do ist solve for y

y = 4x^2 + 8y + 7

[uncut tapir]

Just divide by 4?

[alpine sable]

then i take 4 out of every term

[uncut tapir]

Reduce it to a problem you can solve

[alpine sable]

y = 4(x^2+2x+7/4)

then you can casually solve the bracket with completing the square

y = 4(x^2 +2x + 1 + 3/4)

y = 4((x+1)^2) +3/4)

last thing is multiplying the last value out of the bracket

y = 4(x+1)^2 + 3

[strong heart]

how would i find the limit for number 5

[wary stream]

,rotate

[strong heart]

all i can think of so far is substituting in c for x but that’s basically all i can think of doing

[wary stream]

If you noticed, you interrupted someone waiting, you should ask in a different channel, an inactive one

[mortal void]

sorry for that

[wary stream]

Ask again in #help-7｜zen1thxyz

[deft python]

You guys are so smart ;-;

[alpine sable]

Hello

[mortal void]

hi

[mortal void]

bye

[alpine sable]

I think this isn’t being used

[somber spoke]

i understand part a but not part b

[mortal void]

it isnt that hard

[somber spoke]

has there been a mistake, and it meant to say FGI instead of FHI

[mortal void]

A is congruent

[mortal void]

b and c are aswell

[somber spoke]

d isnt

[somber spoke]

.

[alpine sable]

how do you know tho

since i forgot everything

[mortal void]

d is aswell

[somber spoke]

d isnt congruent

[mortal void]

Two triangles are congruent if their corresponding sides are equal in length, and their corresponding angles are equal in measure.

[mortal void]

yes it isnt

[alpine sable]

What are corresponding angles again

[somber spoke]

learn the congruence laws

[mortal void]

cause on the first figure 5cm one is right the hypotenuse but on second fig its the perpendicular/base one

[wary stream]

Don't be giving out answers here. The goal is to assist and teach the person

[mortal void]

why dont you google it,

[alpine sable]

Exactly

[mortal void]

yeah sorry

[alpine sable]

Can you help me?

And explain it to me

[somber spoke]

inscape

rotate the triangle 90 degrees clockwise

u] get this

[alpine sable]

Alr

[somber spoke]

and the other pair looks like that

u see the similarities

they share a side

and all 3 angles are the same

[alpine sable]

Yep

[somber spoke]

that means they have to be congruent

[alpine sable]

alrr

What does this mean then

[somber spoke]

if a two triangles have the 3 equal sides

that means they are congruent

this is called proof by SSS (side side side)

[alpine sable]

In A it would be AAS

[somber spoke]

yup exactly

[alpine sable]

What is a corresponding pair again

[somber spoke]

shi ion even kno

oh

like

are u talking abt this

[alpine sable]

Ye

[somber spoke]

basically the same side on the triangles

like the hypotenuse

[alpine sable]

So

2 equal sides?

[somber spoke]

yeah

and for angles

https://cdn.discordapp.com/attachments/490557019623915520/879887611957743646/unknown.png

https://cdn.discordapp.com/attachments/490557019623915520/879887519196532796/unknown.png

for example

the angles measuring 79 degrees are corresponding

bc theyre the same angle

if that makes sense

[alpine sable]

yeh

[mortal void]

sorry i found it a hard to explain

[alpine sable]

@somber spoke

@mortal void

How is the last one not congruent

The length right

[somber spoke]

the 1st one

[wary stream]

But not the correct sides

[somber spoke]

the hypotenuse is 5

[alpine sable]

OH YEAH

[somber spoke]

the second one, theres a side thats 5 which isnt the hypotenuse. The hypotenuse is the largest side therefore they arent congruent

[white kiln]

whats the answer on number 10

[alpine sable]

5

[white kiln]

okay thanks

[wary stream]

Why are you giving out answers?

[alpine sable]

Oh oops

Forgot my bad

[dark abyss]

❌

[alpine sable]

Its 5 because if you look outside you see those numbers

[white kiln]

i see

[alpine sable]

If anything is outside the Venn diagram

[white kiln]

3 and 10 are like the same

idk

[alpine sable]

No

[wary stream]

Is it really 5 though?

[white kiln]

my 3 and 10 same answer

[alpine sable]

Its asking

Which do not like both

[wary stream]

It says both tennis and swimming, and both is the overlap part, is it not?

[white kiln]

thanks i understand now

[somber spoke]

it should be 28

[wary stream]

That's what I thought

[wary stream]

Your answer, I don't think was correct

[somber spoke]

this one is 5

[white kiln]

uhe

[wary stream]

Same to you too, stop giving out the answers

[somber spoke]

okay

[tranquil matrix]

i think i need help

in math

[glass lichen]

what have you tried?

[alpine sable]

How

[wary stream]

Because it said both tennis and swimming, and both is the overlap

[alpine sable]

Avtually

You are right

[glass lichen]

well... why did you use 111 when that isnt a number to be concerned with?

[dusty dragon]

guys help

[glass lichen]

yes... so use 111000

not 111

ok then you're right

[white kiln]

i just got this server i just type math on invite link

[dusty dragon]

bro do you know how to do this

[white kiln]

no

[dusty dragon]

dang

[white kiln]

just wiat for help

[alpine sable]

i need help

i need help with my math homework

pls

its 9th grade math

hello?

anyone?

pls?

@mossy snow

pls?

no?

@fading citrus i need help

[glass lichen]

#❓how-to-get-help

and dont randomly ping people

[alpine sable]

but i need help

[glass lichen]

read.

[alpine sable]

Evaluate each expression. Name the property used in each step.
5(7*4-27)

Sir how can I solve this question? Is my answer right?

[fading citrus]

Don't spam for help and don't ping specific people either, read #❓how-to-get-help

Nobody is obligated to help you

[west hearth]

A silly little question, but why are number lines and coordinate axes equally spaced, what would happen if there was uneven spacing like how would that affect our results

[fading citrus]

I suppose you don't necessarily NEED to evenly space them, it would just make following graphical representations more difficult

[west hearth]

Ahh

Yeah it would

[fading citrus]

The spacing just represents a uniform distance per unit

[west hearth]

So it’s just for convenience and not for a mathematical purpose right

[west hearth]

Yeah that is true

[fading citrus]

You could have a linear function on an unevenly spaced x axis and it wouldn't appear linear visually anymore

[west hearth]

Hm yeah

[fading citrus]

I don't know if saying it has no mathematical purpose is exactly right but yes I guess you don't explicitly have to do it that way

It just makes the most sense and is easiest to follow

so there's no reason not to

[west hearth]

Mhm yeah, thanks, was just curious

[fading citrus]

All good

[tranquil saddle]

Hey curious if someone can explain these to me?

;-;

[ivory zodiac]

they're functions

replace x with numbers and plot them on the graph idk what u mean by explain these to me

[tranquil saddle]

Are those correct?

[alpine sable]

I think yes

[tranquil saddle]

It's a drag and drop thing :/

[alpine sable]

So <@&286206848099549185> anybody can help me?

[wary stream]

Distance formula

[tranquil saddle]

They were all correct!

[alpine sable]

Wait how about the last two questions? I think these are false🤔

[brittle venture]

how about this?

[tranquil saddle]

I guess not

[alpine sable]

Ahh oke i see now, it should multiply 2 first

[wary stream]

Midpoint formula

[brittle venture]

mid?? hmmmmm

[wary stream]

There's formulas for this stuff, just look it up

[brittle venture]

Which is the correct equation for a line that passes through the points (-1,-9) and (4,1)?

[alpine sable]

y always everyone be ignoring my question

[brittle venture]

idk

[alpine sable]

its like everyone in my life dat ik or meet, they ignore me

[thorn vortex]

@brittle venture do you know how to find the equation of a line between two points?

[brittle venture]

no

i kinda forgot

[thorn vortex]

well

lets say you have 2 points $A(Ax, Ay) and B(Bx, By)$

[ocean seal]

Pealover

[brittle venture]

ok

[wary stream]

You can either find the slope and use point slope formula or just plug in the given coordinates, since it's multiple choice

[thorn vortex]

the coordinates of the vector $\overrightarrow{AB}$ is $\overrightarrow{AB}(Bx - Ax ; By - Ay)$

[ocean seal]

Pealover

[thorn vortex]

let's then say you have a point $M(x ; y)$ belonging to the lane (AB)

[ocean seal]

Pealover

[brittle venture]

ok

ok i found the answer

thanks

[bitter sage]

hey if u+v = (2,2,0) whats |u+v|

[thorn vortex]

didn't even finish to explain but ok

[brittle venture]

lol

[tight locust]

just use the euclidean norm?

[bitter sage]

can anyone help with this?

[tight locust]

what is the magnitude of the vector

[bitter sage]

like |u| and |v| are 2