#help-0
1 messages · Page 833 of 1
is smaller than 0 - local maximum
if equal to 0 - inflection point, what is that stuff?
inflection point is when concavity changes signs
are you free rn?
and yeah so that's what I
im playing csgo right now lmao
am asking like what the difference between finding maximum and minimum that way and finding maximum and minimum through finding local random points
okay nvm then thanks for the help so far
what is "that way"?
is it correct to use ≡ if we are saying that a letter is equal to a constant in an equation?
like this
or better = sign
In a given moment, three forces act on an aircraft according to the figure below. How large is the resulting force in size and direction
can anyone help me determine the angle and the direction
i don't understand this.
80 -100= 20
y axis = -20 kN, x axis=50kN
sum both vectors and do arctan of y over x
Sum of forces in the x direction and y direction, as that person mentioned
Then find the magnitude
Don't ping me
ok
What power is sqrt
convert $\sqrt{3}$ to an exponent
PlesleronTepryos
Don't give out answers
I said 3^(1/3) instead of 3^(1/2)
oh
so
ok, we need also to decide the angle
3^(7/2)
3^7 or 1
this is the part i dont understand
arctan of -20/50
$$tan(\theta) = \frac{y}{x}$$
dldh06
how did you know that
@harsh ocean the answers ur giving me is completely wrong
identity
3^3 · 3^(1/2)= 3^(3+1/2)
Because the sum of x and y vectors are the legs of a right triangle
sorry, i dont get it. i agree, legs are right triangle, in this way , witch angle are we looking for, were does it locate?
The angle from the horizontal
Aaah. My teacher draw like so.
do you have any suggestion like video to understand this. cuz i need to see the explanation physically. the word doesn't explain enough.
guys critical point is when f'(x) is 0 or not defined
could someone pls help me understand the not defined part?
when is the derivative undefined?
when...there is no continuity
This physics video tutorial focuses on the addition of vectors by means of components analytically. It explains how to find the magnitude and direction of the resultant force vector. This video contains all of the formulas and equations needed to resolve a vector into its components and to use that in order to find the magnitude and direction ...
not just where there is no continuity
there is continuity at a corner
is it differentiable?
corner in the sense?
cusp is another word for it
cusp is an entirely different thing
yeah there is continuity
wait is it?
yes
when it is not smooth
vertical tangents, corners, cusps, discontinuties
on what
like how do I write this...mathematically
write what
slope isn't defined
what is the derivative of |x| at x=0
right hand limit does not equal left hand limit
oh okay so...it ties back to continuity?
no
actually nvm I think I understand now
I understand yeah
thank you both of you, sirs
hi, is this channel free
looks like it
so i can ask questions here, right?
go right ahead
nice, thanks
i'll be back in a second, i need to take a photo of the questions
but it's something about factorising quadratics
fine i'll just go to a different channel
use power rule
what is the equation of a line?
oh shoot my bad
y=y1 = m(x-x1); where m is the slope at x=3
nah it's fine another channel is available, i'm in 7 now
how would that matter
not always
i thought u us definition of a derivitive
not always, yes.
but @south hollow if you wanna calculate equation, it's better to do it using point-slope
k
no
take the derivative
do not think about point slope until you take the derivative
hi how do i do b and c
log rules
how can you rewrite 9?
rewrite 9 as base 3
3^2
yes
and log rule says
that the power/exponent of the expression within log can just be multiplied with the whole log function/equation
so like log(2^6) = 6log(2)
ohhhh
yeah pls get the derivative 1st
so it's just 2log2 3?
4x-13
yes now
that is the tangent equation in GENERAL
how would you get the tangent at exactly x = 3?
Could someone please explain to me why it's s^2 in the acceleration formula?
which one
x/t/t
velocity is distance over time
velocity is m / s
acceleation is velocity over time
👍
So I'm currently trying to get back into Calculus and got stuck on a question. I'm trying to find the antiderivative of this:
Can someone help me with this?
simplify the radicand first, then chain rule
?
oh yeah, how helpful, a lone question mark
Sorry, I'm extremly rusty with this
Currently trying to brush up again before uni
What do you mean with the radicand?
radicand is the thing under the radical
The stuff under the radical
honestly this is a tough one
alternatively you could use context clues since I said simplify and that's the only thing that can really be simplified
And what does the radical mean? Sorry, most of my math was done in a non-english language so I have no idea of some of the terminology
the square root
The density of diamond is 3.51g/cm³ and 1 karat is 0.200 grams, how much is the volume of a diamond of 3 karats?
$$\rho = \frac{m}{v}$$
is m 3 and n 2?
dldh06
Still use that formula I gave
whatever symbol you use for density = mass/volume.
Ok
Plug in the values you know, find the unknown
which part?
Expand and simplify both sides and see if they are equal to each other
Can someone please tell me how I go about Q2
Really struggling here😫
$|2arctan(2x)+cx^5| \le |2arctan(2x|+|cx^5| \ \le |4x|+|cx| \ \le |4+c|\cdot |x|$
Salah
and if $c \ge -4 \implies |4+c| = (4+c)\$ so at the end $|2arctan(2x)+cx^5| \le (4+c)\cdot |x|$
Salah
Occupied?
Thats for 2a right
yes
Thnx
This is a model for a babys weight v(t)=5t^3-135t+3500
The book is asking me a question “ how accurate is this model with reality when the baby is a few weeks old?”
How the hell am i supposed to know that?
is t in weeks?
Days
could someone help me with this question:
A line goes through the point (3,5) and has the gradient a/3. Determine the line so that it goes through the point on the y-axle where y=-4a.
Go ask in another room
and the weight?
It doesnt say
The only info i have is that model i wrote earlier
This is a model for a babys weight v(t)=5t^3-135t+3500
also it says actually that babies normally decline in weight the first few days but i doesnt if it is accurate with reality
And it is asking me if the model is accurate to reality when a baby is a few weeks old
no it's not
v(7) = 4270g = 4.27kg
v(14) = 15330g = 15.33kg
two weeks baby will weight 15kg??
that's can't be real
@simple elm clear?
I wouldnt know how much babys weight
have ever seen a 2weeks baby weight 15kg? it's unreal
so this model is inaccurate
Okay
can someone pls help me in trignomentry
; i think this is more of a math question then a scripting question so i'll try asking here
; is there some kind of formula to find a ratio to use to resize an image for different resolutions
; i'll leave in the code incase it helps someone with context
; test.png is a screenshot image taken @ 1920x1080 resolution | 19:9 aspect ratio | (54x50 pixels)
; result.png is suppose to end up being resized as if i took the same screen shot on a any resolution
; for this example i went a head and took a screen shot @ 3440x1440 | 21:9 aspect ratio so i know the result should end up being (72x66 pixels)
testing() {
File1 = images\test.png ; load test.png into File1
pBitmapFile1 := Gdip_CreateBitmapFromFile(File1) ; Get bitmaps from file test.png
width := Gdip_GetImageWidth(pBitmapFile1) ; width of bitmap test.png
height := Gdip_GetImageHeight(pBitmapFile1) ; height of bitmap test.png
; NEW_WIDTH := width < --- these work as a straight 1 to 1 transfer
; NEW_HEIGHT := height < --- these work as a straight 1 to 1 transfer
NEW_WIDTH := ; < ---Some kind of formula that im to dumb to know < --- PROBLEM LIES HERE I BELIVE
NEW_HEIGHT := ; < --- Some kind of formula that im to dumb to know < --- PROBLEM LIE HERE I BELIVE
pBitmap := Gdip_CreateBitmap(NEW_WIDTH, NEW_HEIGHT ) ; create a new bitmap (width x height = total area)
G := Gdip_GraphicsFromImage(pBitmap) ; Get a pointer to the graphics of the bitmap, for use with drawing functions
Gdip_DrawImage(G, pBitmapFile1, 0, 0, NEW_WIDTH, NEW_HEIGHT, 0, 0, width, height) ; Draw the bitmap onto our "canvas"
Gdip_DisposeImage(pBitmapFile1) ; Dispose the bitmap from file we created
Gdip_SaveBitmapToFile(pBitmap, "result.png") ; Save the bitmap to file "result.png"
Gdip_DisposeImage(pBitmap) ; Dispose the bitmap "canvas" we created
Gdip_DeleteGraphics(G) ; The graphics may now be deleted
}
what grade is this?
Use your times tables
<@&268886789983436800>
?
lol
Ayyy
First off, don't do people's work for them
Thanks
Okay sorry.
No dldh06 is best
2nd, they've admitted to being underage.
and u DONT INTERRUPT HIM 🤣
Am kidding I promise this is grade 7
But am so lazy
Cuz it 3am
But for real thanks
Have a good day @frigid ravine
Thanks bro
I don't think theyre learning whole Z in 2nd grade
Still, do your own work
Can u leave me alone
Anyone here is good at graphs?
me
Oke
Pocan go private
So im trying to proof that every graph with same number of nodes and vertices has one cycle
Im trying to do it with induction
._.
@frigid ravine
Hehehe 🤣
PEMDAS
YES
just use order of operations
this stuff isn’t that hard
no like you could do the entire thing with a calculator
Now pls help I wanna go sleep it’s 3am
Based on the one answer you have filled it you really need to practice and study some more so that you understand it.
So noone will answer my question
like a normal calculator
what do you need help with
Nice
.
I can solve it and I know it’s easy
what do you not get
can i send something in french
But am sooooo tired it 3am
Do your own work
The one answer you have filled in is wrong
My head hurts bro
no again
if you're tired go to bed.
.
Stop trying to get people do work for you
Also you said the teacher was coming soon, and it's 3am
If you're going to lie at least be good at it
his teacher is coming to his house….
._.
You might have some better luck in another channel, this one seems to be spammed frequently.
Tomorrow the teacher will come and say where is ur paper
can i send something in french
so do it in the morning
then just do it man
Yep i see
If you translate it for us
u can get this done in like 15 minutes or less with a normal standard calculator
Hmm
btw how old are you @ebon steeple 😄
Give me a server that give answers
no
man
cause we're not pathetic
12- 13
chose a number multiplie it
why would you narrow it down to just one yesr
..
what is the point of that
You got 3^2 + 4^2 incorrect on your paper. Being given answers isn’t going to help you, you should work on actually understanding this or you will struggle a lot in the future.
I know I will just do 6x4x(8+28x2)x7
I will start with brackets
good idea...
but if you cheat on your work you won’t get it then you’ll fail on tests
Channel's free for people with actual questions btw
Haha
I had one
It will become where where I
can you actually viably prove that the fourth dimension is time
or is it like
up to debate
it's the temporal dimension
28 x2 equal wait HEY SIRU
most models use 3 spatial and 1 temporal
56
There r only 3 dimension
wait so is our dimensions 3D or 4D
3D
58+8=
with 1 temporal
so we have a temporal construct right
really 😂
not dimension?
chose a number and multplie it by 2 add 27 multiplie it by 27 and subtract three times the number chosen
when we say 3 dimensional space, we mean 3 spatial dimensions
oh
what number is equal to 0
Are u guys in college
ok ty
I’m in high school
Nice I wish u a great year
you too
so for example when we consider say the force of gravity, we model it as a vector $[0,0,-mg]^T$ a 3 dimensional vector
Is it hard when you grow up
Mosh
chose a number and multplie it by 2 add 27 multiplie it by 27 and subtract three times the number chosen
hose a number and multplie it by 2 add 27 multiplie it by -6 and subtract three times the number chosen
??????????
chose
is what hard
Bro @frigid ravine solve this in 1 sec 🤣
However I can also say the force of gravity is a function time, but it's just constant wrt t
Are u a teacher
$\vec{F_g}(t)=-mg\hat{k}$
what number is equal to 0
bro lowkey I wish I was still in middle school

high school is big change
don’t like
help me
Mosh
But for real can some one pls solve 1 and 2
hose a number and multplie it by 2 add 27 multiplie it by 27 and subtract three times the number chosen what number is equal to 0
Use a calculator
Simple as that
PEMDAS
The caulculator is stupid
do you know what PEMDAS is
Yes
user error
ok so start by doing the work in the parentheses
27(2x + 27) - 3(27(2x + 27)) @fallen parcel
solve that with a calculator
then do everything else in the order that it is cuz it’s only multiplication
that’s it
it’s truly
not difficult
Calculator is our nemesis. We need to be able to calculate any number which is not infinite by ourselves
hose a number and multplie it by 2 add 27 multiplie it by -6 and subtract three times the number chosen what number is equal to 0
Hey can someone help me
Im in 10th grade
Algebra 2
And i have a math test on Tuesday on factoring
I have always been struggling with factoring
Calculating by ourselves is a good excercise for our brain and makes it independent. Of course m not saying that calculator are inconvenient but that without calculators our brain will see a growth..
Can anyone help me with factoring
Yea
try asking a question...
Ask questions and we will help u understand
Okay thank you so much hold up
You will find ans by yourself
I need to know how to do this by myself i completely understand that
Lemme send one hold on
Ok👍
Question 30
Where is question 30?
Its sending
Hmm
You have two methods to solve these quadratic polynomial
But i still have trouble
Have you learned middle term factorization?
I will write it on copy then show u
Okay
How u do middle factorizatikn
He may want me to do it thee way he showed me
What he showed you?
He said to first find if you can do it the GCF method, then if not do the different of two perfect squares(DOTS) method, or do it reverse FOIL/grouping for trinomials method
Difference*
I just was so lost when he started teaching it
From the beginning
Like factoring in general
you know the formula a^2-b^2=(a+b)(a-b)?
Factoring means getting the expression into products
For example if u r asked to factor 3+7 you know that it's equal to 10 and you factor it into 5 x 2
Its just that concept but with algebra
(a+b)(a-b) when we multiply these two we get a^2-b^2
Oo yes yes
Its very difficult for me to do this over text i need like a voice or class for this
Im sorry
Its just really hard for me
Sorry m not english speaker
Oh no no its not that no worries
yo can someone help me?
I have an tangent of and elipse which is 2x-y-3=0 and the elipse: x²/2+y²/b²=1
can someone explain how I can find b²?
<@&286206848099549185>
- lets say you have a square that is 60x60
- this square is tied to 19:9
- how can a person convert it to 57x57
- you are given only given the data 5:4
i see if i go 60 * (21/9 - 1) it will = 80 when trying to convert to 21:9 not sure if this is on right track or not
1a pls <@&286206848099549185> I am so so confused
Do you have a problem about derivating stuff?
i figured it out LOL. thank you
if anyone wants the answers, dm me i'll send it to you
So you basically have a system of 2 equations and you want to solve it for x and theta, is that right?
do i not use the quotient rule for this?
Yes you use it
tan(45)=1/2
yeah i did but its not working
like i did
f'(x)g(x) - f(x)g'(x) / g(x)^2
Nah it's not right
f'(x)g(x)-g'(x)f(x)
That's better

- Numerator is wrong
quotient rule
oh shit ok my bad
So wait
yeah i swapped it around
@robust geode can you help me set up system of equations
yeah got it thans
lmao cant beleive i messed that one up
what about this?
dont i just derive and sub in 4
yes
didnt work
I am in bed and I will sleep soon, so I don't have the will power to move rn
In order to write things out
oh ok how do i put sin(theta) and cos(theta) in a matrix
$(-x+5)/(2* \sqrt{x} (x+5)^2)$
bennypc
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
you just write them...?
It's clearly not linear
thats what i got after deriving
In terms of theta I mean
find the slope at point and use this y-y1=m(x-x1)
cant i just sub in x?
Factor out what's in x and what's not
@glass lichen how do i do this
Aaaaaah it really triggers me to get up and write in my whiteboard
Nah too lazy, can someone solve his system and show the steps?
2 equations 2 unknown?

I think one way is. Take 30 and 60 to rhs. And then take x common. And take ratio.
@restive glacier
You followed the steps?
is this right so far
Nope
Second equation is wrong ig
Sin45 and cos45 have same value
It will be just xCos(theta)
oh
Looks like it
now for the second equation can x(cos(theta)-sin(theta))=30
Bro can you please throw away those 2's. They are bothering me 🤣
ok 1/sqrt3
Yes
Are you in 10th grade?
Wow
Progressive Americans
They taught us trigonometry in 10th grade
Yes I think so
xD
x is a vector
Vector?
It's not a vector anymore ig. Just the magnitude
These are scalars
You have 30 in equation. You can't add vectors with scalars
I am really surprised they teach vectors in 5th grade. We learnt it in 11th
Lol
Lol
lol
on the textbook it says theta=2.97
Now tell us your truth. We know you are a dad trying to solve your kid's trigonometry problems
I can try find theta for you. If it doesn't require calculator
Wait
No i am solving it for my wifes boyfriend

Thank you for your help. gonna ask my physics teacher tomorrow
@alpine sable
Ugh
Yup
So arctan(this shit) is possible to do
👌 👌 👌
its wrong
ye
Is this wrong?
My math seems fine. Not sure why the answer is wrong
theta equals 2.95. maybe textbook is wrong
Or equations might be wrong
are you sure
b?
yes
can i see your work
help question 5
calculation is incorrect
where tho
The derivative is correct, you just distributed incorrectly
oh how am i supposed to distribute it then
Check the math again for (-2)(1 + 2x)
okay ty
need help question 3
Danielle has signed up to an Internet plan with 100GB of data per month. Her maximum download speed is 25Mbps. Assuming she is able to download at maximum speed continuously, Danielle’s data allowance would run out in
Plot the two lines
Not sure what that means
this is how im doing it in my notebook
I multiplied 2 times 0 which is 0 and 2 times -3 which is -6
Just make a table plugging in values into the equations, like -2, -1, 0, 1, 2
Then plot it
Calculation would be tough if you take 1024 mb
But it's simple just divide 100Gb *1024/25 then you get seconds
See what format is answer in. Seconds hours or days.
@wary stream hey!
Why?
Don't remember this kind of physics
is it a test/quiz?
ye just making sure cause ik some teachers have used D2L quizzes for actual assessments
D2L/Brightspace, whatever the company is called
yeah
anyway, what have you tried for the inclined plane problem?
I'm a physics two person, electricity and magnetism
You should've covered dynamics before EnM but 
i dont remember how do it
i think
Fnet = 0
draw the FBD of the block on the plane and the suspended mass
fnet is 0 because theres no acceleration right
That is true but it's been a few years since I've touch physics two because I'm an E & M major
what's physics 2?
no
Physics two is E&M but my point is it's been a while since I've done physics 1 because my major is all physics 2
- the mass is on an incline
- You can assume the mass on the incline will accelerate up the incline since the suspended mass weighs more
so friction acts down the incline
how do you calculate it
depends
is this the actual question or is there more context
i just need the height of the triangle
wdym, you dont need more context \s
a normal triangle
My personal favorite is pointing a releasable weight at the top of the triangle to find angle and then using some easy trig
wdym 7cm
bruh what
still 7
I’m dying
a regular triangle bruh
bruh
Yeah, im still going with 7cm
i'm staring at a triangle right now and its height is 19cm not 7cm. /s
@glass lichen honestly same
Oh
its an isoceles
Nah, it's more like 20cm \s
pretty sure that still doesn’t help
got a more precise ruler
Have you tried stacking unit squares?
$\frac{1}{2}\norm{\vec{u}\cross\vec{v}}$
Mosh
huh
h = h
H = integral from 0 to h dx
that's the formula for a triangle's area
yes
if the height is 30cm does it matter what i make the length
stupid questions get stupid answers
if the height is 30cm whats the length
7cm
we'll reach the 10mins eventually
the base of the triangle is 60cm and the length of the triangle is 30cm so what do i make the height
7cm
They said isosceles so I’m assuming this is the sides
wait isn’t the base and length the same thing lol
Unless the sides are 60 and short side is 30
length is ambiguous still
no its not @raw shard
||they can't post an original image because this the 10 min time limit suggests its probably a test||
does 60 30 30 satisfy triangle inequality?
@glass lichen obviously
Anyways, consult the mighty Pythagorean theorem.
oh yeah, had the sign backwards
oh my gosh finally
It says 35 right there
<@&286206848099549185> can someone help me in mathematics vc?
yeah lol
that looks wrong
such a triangle doesn't exist
also the height can’t be more than the hypotenuse
if it is then you got a new hypotenuse lol
This triangle does not exist
I think the answer is $e^{i \pi} + 1$ \s
@cursive crescent sorry for judging forgive me
well it could be degen
dldh06
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
All triangles are good triangles
where its just a line segment
the width of the base of the house is 60cm
house?
thats why the base of the trianglular prism roof is 60cm
when did we build a house in this question
bye bots
ok
60cm length house
yall suck
ok
I stand by my answer of 7cm 
ok
you aren’t giving us any details lol
my friends joining
can’t help if we don’t have info
learn how to ask a question next time.
BUDD
can’t make something from nothing
LITERALLY
NOT THAT HARD
JUST HELP ME
one little formula
is all i need
geez louise
You gave us no details at all
stop bitching if you cant even ask a question properly
no usable details
yeah that's not possible, next
the height can’t be more than the hypotenuse
More info is needed
impossible triangle lol
but the hypotenuse is 60cm
Sin = opposite/hypotenuse, cos = adjacent/ hypotenuse, tan = opposite/adjacent
There is like five formulas
can you give the whole question exactly as stated
don't leave anything out
don't add words of your own
BRO WE DONT CARE ABOUT TRIGANOMATRY
i might just start giving nonsense answers like everyone else
post the original image if possible
measure it
@sterile thistle what's the answer to this equation?
Don't forget about law of sines and law of cosines
length and base are the same thing lol
if its digital post a screenshot
We’ve got lots of triangle formulas
There is zero chance that’s your question
honestly at this point i’m completely serious when i say measure it
a screenshot of the original question
@sterile thistle do you know what a triangle is
bruh
Post the entire question
With the words that it says
and this is my roof
for it
OMG
and i need to find the height
of the triangle
Ok but what's the actual picture?
You have a height though?
the thing is
your height is more than your hypotenuse lol
so maybe switch those numbers around
- why is there a time limit of you building a dog house?
dog is angry
Trueeee
Which thing was a joke
are all your 30s 35s and your 35s 30s?
...
Nah*
oh gosh
I can’t
my god
That's worse than the impossible triangle
i won’t even try
i literally don’t know what’s what here
This is a joke, yes?
i’m serious
i’m sorry but i’m dying here
OK
Just measure it, simple as that \s
ruler
@wary stream at this point literally do that
ITS PHYSICALLY IMPOSSIBLE
so is answering your question
Your dog house is digital?
nah
this is outrageous
@cursive crescent virtual dog
Nintendogs next game vfx artist right here
maybe start from the very beginning and give us all the details you have
If it’s not hard then why do you need our help?
if it's not hard, do it yourself
is it sad that i forgot what an isoceles triangle is
oh yeah, I can find the height, given sufficient information, which you have lacked to provide
i have to build a dog kennel for an assignment and ive made these measurements for the base of the house 90cm length 60 cm width the base is a rectangle, the roof for the house is a triangular prism, since my base has a width of 60cm then the base of the triangle has a width of 60cm, what do i make the sides of the triangle and what do i make the height of the triangle in order for this to make sense/
THERE
anything that satisfies the triangle inequality
now we got something maybe
You're asking "if the base of a triangle is 60, what do I make the other sides"
+1, you can choose the height
the base cant be the hypotenuse right?
it can
Honestly just pick some random number that satisfies a legal triangle, like mosh said
can i make the sides of the triangle 30 cm and the base 60cm?
No cause that's the degenerate case of triangle inequality
no, as we all mentioned earlier
No
just make it an equilateral triangle...
if its 30 isnt it an isoceles triangle
you cant have an isoceles trianglular prism?
Or make a square roof, all the sides would be equal, easier math than a triangle
You can, but not with side length of 30
.
Like this is the easiest answer
you can, but one with 30cm legs and a base of 60cm is impossible
If you laid 2 sides of 30 end to end, they would be the length of 60, so they wouldn’t touch before they’re a line, like was said
whats the shortest measurement i can have the sides as for the triangle to be true
30
you asked for the shortest
so anything bigger than 30 works...
yes
34?
Yep
34 > 30 yes
can it be 60 base, 40 sides and what do i make the height
The longest the sides the higher the height
oh finally we have some legitimate values
yes, then calculate the height with pythagorean
apply bisection theorem,
and then apply pythagoras
Sqrt(60^2 - 40^2) would be your height
whats the formula for pythagorean
a^2+b^2=c^2 where a and b are the legs and c is the hypotenuse
Hold on I’m being brain dead
60 pt2 - 40 pt2 = my height
no

