you can also start with finding time but thats lengthy
#help-27
south rampart
you can also start with finding time but thats lengthy
Yea that what I wa stuck on it was so much
slender wigeon
Yea that what I wa stuck on it was so much
in that case time to reach topmost point is u/g
south rampart
Can I just use the formula that u said September better then all of this work?
slender wigeon
in that case time to reach topmost point is u/g
i mean think about it...every second..your velocity u is decreased by g
south rampart
I am pretty sure I can use this formula it’s me finding the answer still
slender wigeon
So guys can I or not use the formula
u can for objective why not
slender wigeon
mcq
south rampart
Is this objective?
south rampart
Ohhhh
south rampart
Ok so I need to do time formula then the deltax formula
slender wigeon
Ok so I need to do time formula then the deltax formula
no
south rampart
Ok what do I do then
slender wigeon
just show how u get to the short cut
start with equation 3
youre all god
goood
south rampart
Eq 3 is this?
slender wigeon
the three equasons of moson
south rampart
bro my phone died
slender wigeon
learn from physicswallah sir
south rampart
yea
south rampart
dam
red turret
do you understand hindi?
red turret
then stick with khanacademy imo
south rampart
def
red turret
physicswallah has got an english channel
not better than khanacademy
slender wigeon
then stick with khanacademy imo
neh tutorials point lectures better
pradeep kshetrapal sir explains it more intuitively than sal
south rampart
no way
red turret
ofc they do
oh, idk then mb
slender wigeon
no
also theres this:
https://youtube.com/playlist?list=PLMnHwrPjHwJW3p0mB9l4OKDprqMw3gN2f&feature=shared
south rampart
am i doing good
Bro I honsotly don’t understand all of this
Just am I dong this correct
slender wigeon
Bro I honsotly don’t understand all of this
south rampart
So now I gotta finish it and find deltax
What
Omg
I don’t no anymore bro
I am fried
No bro
I need to finish this
And I am so bad at this
south rampart
I do
slender wigeon
I need to finish this
health more important...u need sleep
south rampart
Yea
slender wigeon
i gave him two english playlists
slender wigeon
i gave him two english playlists
pw and tutorials point
south rampart
Look September
Look
Let’s start from here
Yes but wait cuz you are in a step that idk where
Ok from here where I go
woven radishBOT
September 1 enjoyer
woven radishBOT
September 1 enjoyer
south rampart
Ok
woven radishBOT
September 1 enjoyer
south rampart
What is thissss
woven radishBOT
September 1 enjoyer
woven radishBOT
September 1 enjoyer
south rampart
What is u
I am here rn
Omg you said multiply with the 2 and square it
That is what I did
woven radishBOT
September 1 enjoyer
south rampart
Bro I am having dificulty knowing what that is
Can we just go with what I have
And tell me where to go with that
Cuz I did what you asked
Multiply by 2 and square
Look
Omggggg
Bruuhhhhhh
What’s vo
Yea I did that good
Ok
woven radishBOT
September 1 enjoyer
woven radishBOT
September 1 enjoyer
south rampart
Ok
woven radishBOT
September 1 enjoyer
woven radishBOT
September 1 enjoyer
woven radishBOT
September 1 enjoyer
south rampart
It was originally 225 then when I moved it to the other side it became -225
Ok so 19.6/225
south rampart
-11.5
woven radishBOT
September 1 enjoyer
south rampart
woven radishBOT
September 1 enjoyer
south rampart
-11.5 time 1 is the same
woven radishBOT
September 1 enjoyer
south rampart
Thank you god
Yea
Alr fixed
U see them?
Alr ws bro
Your a legend and the rest of the people who were here
Thanks bro
Ok now 7b
And 8
D
XD
u did
8 u did
Idk why there was square root I think it’s weird
Alr that’s enough for today
I what u mean by case
Case as in part
So all of that is part b
But u just said max height with is 7a
What u me a
Yes
But we don’t have to do know
Now
We can take a break
U k ow what I mean
Ok let’s do that
Bruh first day tom
Dam
So all of this is 7b?
Dam bro
Bruh
U right
Alr ima look at it
We can continue this in dm if u want and close this
Yea
Bruh
What
Omg
Right
But we can do that at dm to
?
Bro I did
alr
woven radishBOT
September 1 enjoyer
woven radishBOT
September 1 enjoyer
woven radishBOT
September 1 enjoyer
south rampart
How u get that
south rampart
**September 1 enjoyer**
This
For v I put 0?
O
Yes
Whatttgf
We are finding t
woven radishBOT
September 1 enjoyer
south rampart
So we don’t put anything for t
woven radishBOT
September 1 enjoyer
south rampart
Wait wait
Nah bro I get it I am just tired
Oh I remember
Wait
T = 1.53
Really
Ok
woven radishBOT
September 1 enjoyer
Compile Error! Click the 
reaction for more information.
(You may edit your message to recompile.)
south rampart
Omg again
So vf and vo are 0
U still here?
If you have to go that’s ok we can talk later
Ok
Why not later today
Cuz this is gonna be on a test
Okay I guess
try to do earlier if u can
Ok
Alr thanks for everything
Cya later
.close
devout snowBOT
tight ridge
.reopen
How do you prove this equation?
I looked at the worker solution but I don't understand how cos theta was converted into '2cos²theta/2 -1'
slender wigeon
whats cos2x
tight ridge
Wait, I remember why I forgot about the other cos double angle identity. Thank you for confirming 👍
.close
devout snowBOT
Available help channel!
bitter stream
how to approach this?
devout snowBOT
how to approach this?
bitter stream
help no?
narrow relic
turn one of the solutions in to y = f(x) the sub it into the other one
simultaneous equations by substitution
devout snowBOT
@bitter stream Has your question been resolved?
devout snowBOT
@bitter stream Has your question been resolved?
swift grotto
hello, i need help with getting the X cords from a position from a direction,
basically ive got the direction (ref1) that is a X Y value ranged from 0,0 to 1,1 (ex: 0.5,0.2 / 0.2,0.8) and a position from a object from that direction that ranges from inf,inf to 0,0
what i want to achive is place get that position onto a object position based on the direction (ref2) where Y turns into the difference in position ahead and X turns onto the difference in position sideways
i was able to get the Y factor by multiplying it (ref3) but im unable to get the X factor which requires the direction to be inverted (-1,0 to -0,1 / 0.5,0.25 to -0.5,-0.75) for that to work and i cannot find a way to do it
swift grotto
this is some example values where p is the position d the direction and s the final position
i wanna turn the direction onto a reversed direction where it gives the remaning value for the side position but i cannot find a relation with the values to get that reversed direction
and thats where im stuck at
devout snowBOT
@swift grotto Has your question been resolved?
devout snowBOT
@swift grotto Has your question been resolved?
devout snowBOT
@swift grotto Has your question been resolved?
devout snowBOT
@swift grotto Has your question been resolved?
swift grotto
sure why not
restive river
devout snowBOT
restive river
Why is it 2.5 instead of 1.5
random badge
Why is it 2.5 instead of 1.5
At the end of 2016, there were 180
2.5 represents the total
150%+original total=250%
Aka2.5
restive river
oh 150% more
i see
i just converted 150% to 1.5
from intuition
makes sense
ty
.close
last idol
A gambler decides to keep betting on red at roulette, and stop as soon as she has won a total of five bets.
\begin{center}
a) What is the probability that she has to make exactly $8$ bets before stopping?
\end{center}
devout snowBOT
A gambler decides to keep betting on red at roulette, and stop as soon as she ha...
woven radishBOT
sadkid
last idol
!status
devout snowBOT
What step are you on?
1. I don't know where to begin
2. I have begun but got stuck midway
3. I got an answer but I'm told it's wrong
4. I got an answer and would like my work checked
5. I have a question about someone else's worked solution
6. None of the above
2
So the way that I approached this problem was
According to the question the gambler would have stopped on the 8th bet exactly, which means that she won her 5th bet on the 8th try which is fixed
Which means we're left with ([],[],[],[],[],[],[],[W])
Now we know that we win a total of 5 bets, which means that we get 4 wins to distribute along the 7 remaining positions
So we can use the formula to get: P(4 wins out of 7 games) + P(Winning 1 game)
my problem is I don't know how to find the actual probabilities
of successes or failures
since they were not given in the problem
timber pebble
red and black are like H and T right
topaz axle
the simplest assumption is 50% red
timber pebble
so this problem is identical to 5 coin tosses?
topaz axle
yeah
timber pebble
well until 5 heads
or whatever
this seems reasonable to me
,w roulette probability red
last idol
I tried googling it and it did this:
timber pebble
o green
last idol
It's weird that they didn't give it in this problem
timber pebble
well solve it in general then
timber pebble
then u have to ask your professor
last idol
okay 👍
timber pebble
finding the answer in terms of their answer is proactive tho
last idol
yeah I did
last idol
can you check my answer?
i can try
last idol
$\binom{7}{4} \cdot P(Win)^4 \cdot P(Lose)^3 \cdot P(Win)$
woven radishBOT
sadkid
last idol
I could've sworn \choose was a thing
timber pebble
this is what id get to
it is, \binom :p
you can write it better
lose = 1-win
but yea
last idol
oh yeah lol
well bing chilling
thanks for all the help @timber pebble @topaz axle
.close
dry oxide
$\left(\frac{1+\sin{\theta}-\cos{\theta}}{1+\sin{\theta}+\cos{\theta}}\right)^{2}$
devout snowBOT
$\left(\frac{1+\sin{\theta}-\cos{\theta}}{1+\sin{\theta}+\cos{\theta}}\right)^{2...
woven radishBOT
yajatk07
red turret
half angle properties?
dry oxide
i simply used a+b+c whole square on both num and denom, then did some simplification like making 2sinthetacostheta as sin2theta
but i got stuck
dry oxide
half angle properties?
i did used
red turret
which one?
red turret
tan
dry oxide
where did tan came from?, did i did something wrong?
woven radishBOT
Dyssrupt
red turret
similarily the cos one
red turret
automatic
red turret
half angle cos identity, the tan one?
yeah
dry oxide
$\left(\frac{1+\sin{\theta}-\cos{\theta}}{1+\sin{\theta}+\cos{\theta}}\right)^{2...
not the same case with mine then
devout snowBOT
@dry oxide Has your question been resolved?
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Available help channel!
restive river
1, 20, 300, 4 000, 50 000, 600 000, 7 000 000, . . . how would i express this in set builder notation
devout snowBOT
1, 20, 300, 4 000, 50 000, 600 000, 7 000 000, . . . how would i express this in...
reef pilot
restive river
x * 10 ^(x-1)?
restive river
do i have to say where x is not equal to 0 ?
devout snowBOT
@restive river Has your question been resolved?
topaz axle
you have to say it in your version with Z
{ x * 10 ^(x−1) | x in Z , where x not equal to 0}
looks good
restive river
{ x * 10 ^(x−1) | x in Z , where x not equal to 0}
looks good
does it have to be formatted that way
like could you do {x in Z | expression, where x not equal to 0}
topaz axle
i don;t think so
i've always seen it starting with expression
oh right, it doesn't make sense that way
like the word where
restive river
oh i dont know how to not use where 😦
topaz axle
{ x * 10 ^(x−1) | x in Z , x > 0}
i'm trying to find something that looks like it's the one true way
there isn't one true way in general, i just mean so it looks like it couldn't be something else
no okay that looks best
restive river
x in N?
topaz axle
i would hate that
hollow swift
Im having trouble with v2 in specific i am unsure as to how to convert it into row echelon form
devout snowBOT
Im having trouble with v2 in specific i am unsure as to how to convert it into r...
hollow swift
I managed to do it with v1 because it was pretty straightforward
I try multiplying r1 by 1/3 but the 4/3 is really hard to work with
delicate fox
youd just do the same steps as v1
like the same steps
just calculate it on v2 with a calculator or smth
hollow swift
dont we have to turn the matrix into row echelon form
delicate fox
yes
but the matrix is the matrix with [a b c] as columns
itd be like $\alpha \vec{a} + \beta \vec{b} + \gamma \vec{c} = v_i$
woven radishBOT
nadav
delicate fox
so the system of equations would be $[\vec{a} \vec{b} \vec{c}] \vec{s} = v_i$
woven radishBOT
nadav
delicate fox
bad spacing but still that matrix is the one being reduced
youre just applying the reduction operations on different v_i
hollow swift
Got it let me try
devout snowBOT
Available help channel!
sweet thorn
devout snowBOT
sweet thorn
Can anyone please help solve? I am just running in circles
Calc II and I have not learned the limit chain rule
Another try...
I keep getting ln(lnx) which even if approaching from 0+ I feel is undefined because the first ln yield -inf and the 2nd ln then is UD
So it must be that my logic is incorrect or my method is incorrect
trail eagle
I'm thinking of two ways. If you want a convincing argument that the limit is 1, then you can see that in the first image you posted, ln(ln(x)) goes to -infinity much slower than 1-x goes to 0. Hence one could argue that ln(L) = 0 so that L = 1.
If you want a more rigorous approach, then starting from your first image again, write $$(1-x)\ln(\ln x) = \frac{\ln(\ln x)}{\frac{1}{1-x}}$$
woven radishBOT
Azyrashacorki
trail eagle
Then apply LHR
devout snowBOT
@sweet thorn Has your question been resolved?
sweet thorn
Ah, I think I se my issue...
When I put the left side under 1 I don't have to recheck the limit because it is the same 'form' underneath I guess...
and yeah I also just noticed that while doing a different problem and comparing to the notes exactly, so problem solved, thank you!
.close
leaden plinth
devout snowBOT
leaden plinth
why do you cross the direction vectors of the line with the distance from the point and the position vector of the line
random temple
because the plane must contain both the vector direction and the difference between the position vector and the line
so you cross them to find the normal vector
leaden plinth
because the plane must contain both the vector direction and the difference betw...
right ok
that makes sense
why isnt the coord we use
wait
why cant we use
any other point
on the plane
do we have to use 9,0,-1
if we do that cross
random temple
do we have to use 9,0,-1
well that one is given so you know for sure that it's on the plane
any other point would still work
random temple
would i still get the right answer
if it's on the plane then yeah
devout snowBOT
@leaden plinth Has your question been resolved?
devout snowBOT
devout snowBOT
Available help channel!
fleet moat
(L/n) (x)
L(x) x²-14x+49
N(x) x+7
devout snowBOT
(L/n) (x)
L(x) x²-14x+49
N(x) x+7
left pagoda
Are you familiar with polynomial long division?
fleet moat
Nope, teacher just straight up said here's your assignment
left pagoda
Is this for an Algebra 2 class or somewhere around there
wooden wraith
(L/n) (x)
L(x) x²-14x+49
N(x) x+7
just curious are you sure you copied all the +'s and -'s correctly?
fleet moat
Yes
left pagoda
yeah if that’s the case I imagine the teacher is expecting polynomial long division
fleet moat
Do u want me to send you a screenshot of the TV screen
fleet moat
I told you here
That's for L-M
main gull
No
fleet moat
What
main gull
fleet moat
Yes
cinder mural
Do L(x)/N(x)
fleet moat
That one
main gull
I was saying that either L(x) or N(x) has a sign error
fleet moat
But how????
main gull
I never said it was for L -M
If you do L/N, where N(x) = x - 7
So $\frac{x^2 -14x+49}{x - 7}$ factor the numerator and cancel
woven radishBOT
dldh06
main gull
I literally told you that
fleet moat
I asked the same channel for multiplication, subtraction and addition, i got all of it understood but this division thing i don't understand
fleet moat
That sign is x-7
fleet moat
Yes
main gull
Then what did I say about N(x)
fleet moat
To factor it
cinder mural
@fleet moat just check your messages
fleet moat
The numerator
main gull
To factor it
I never said factor N(x)
fleet moat
The numeratkr
fleet moat
So it's most likely an error?
main gull
And that's what I mean, you aren't reading what was told to you
devout snowBOT
As a helper, please do not give out answers that could be copied as a homework solution. Have the student work through the problem themselves and guide them along the way.
main gull
And don't do the work for people
cinder mural
😈
fleet moat
And don't do the work for people
I'm tryna understand how he got the answer so i can answer the other numbers with division sign
main gull
**dldh06**
And I'm telling you right here what to do
cinder mural
Don’t do what I did
main gull
Can you factor the numerator
main gull
Don’t do what I did
You should delete that so OP doesn't copy that wrong method
fleet moat
main gull
Can you factor the numerator
.
fleet moat
I can't
main gull
If you don't know how to factor, I suggest you review that as those problems had to apply that
I also mentioned this
main gull
Why is x outside the parentheses?
main gull
Yes / is divide
main gull
$\frac{(x -7)^2}{(x-7)}$
woven radishBOT
dldh06
main gull
Cancel stuff out
fleet moat
What do you cancel
main gull
Well you have x - 7 in the numerator and one in the denominator, it's identical
Like 3/3 = 1
fleet moat
I don't get what you are trying to say
woven radishBOT
dldh06
main gull
Or $\frac{20}{5}$
woven radishBOT
dldh06
fleet moat
I dont
main gull
You should look into that. There is a lot of concepts that are applied and it seems like you are lacking that knowledge to complete this task
fleet moat
Do you have the link to YouTube on how i can
main gull
You can google, can't you?
devout snowBOT
@fleet moat Has your question been resolved?
restive river
devout snowBOT
restive river
wehres my mistake
right equation is transformed g(x)
left equation is g(x) which im trying to transform
below is my work
however when I graph it there's some mistake
devout snowBOT
@restive river Has your question been resolved?
devout snowBOT
devout snowBOT
Available help channel!
verbal mesa
if the number y + 7z is even for integers y, z. can the number 7z - 7y ever be odd?
devout snowBOT
if the number y + 7z is even for integers y, z. can the number 7z - 7y ever be o...
verbal mesa
i need to consider a few cases right
timid whale
not really
because y +7z is odd only if they have the same parity
and addition or subtraction of 2 numbers of same parity always returns even
verbal mesa
because y +7z is odd only if they have the same parity
here do you mean 7z - 7y instead?
wait
nevermind
think I got it figured out
timid whale
i was talking about what was given
verbal mesa
assuming 7z - 7y is odd (should) leads to a contradiction right
timid whale
yes but u wont get anywhere with that
y+7z is even only if they are both odd or both even
did u get this
verbal mesa
yup
timid whale
after that u just put same condition there
verbal mesa
alright so y + 7z even => y, z have the same parity. alright.
then if they have the same parity, then 7z - 7y should also be an even number, thus assuming 7z - 7y is odd leads to a contradiction
isn't that right?
that's where i wanna get
timid whale
yes
timid whale
alright so y + 7z even => y, z have the same parity. alright.
then if they have...
no need asume
because they have same parity
u can directly say its always even
dry oxide
if we have numeric value of acceleration, displacement, and FINAL velocity, and we need to find time, can we use 2nd eq of motion here, only problem here is i think we use 2nd eq when we have INITIAL velocity not final
devout snowBOT
if we have numeric value of acceleration, displacement, and FINAL velocity, and ...
dry oxide
$u$
woven radishBOT
yajatk07
dry oxide
$v$
woven radishBOT
yajatk07
safe knoll
if we have numeric value of acceleration, displacement, and FINAL velocity, and ...
yes 2nd equation is for initial
devout snowBOT
dry oxide
yeah ik
safe knoll
do u want help tho? or u got this
dry oxide
nah thanks, i got it now, it was the only confusion ty
safe knoll
ok, gl
devout snowBOT
Available help channel!
restive river
devout snowBOT
restive river
i did the problem again and got log(x^3/y10^2)
would that be correct
logx^3-logy-log10^3+log10
.close
devout snowBOT
How to do 5???
young crane
Well
You know the formula for n terms in a GP yes?
a * r^n-1
@restive river
And you know how GPs work
restive river
Yes
restive river
<@456226577798135808>
Yes
pseudo basin
You know the formula for n terms in a GP yes?
n'th term*
young crane
Well
Clearly you know the formula for sim of infinite terms
a/1-r
All you need to do is
Equate it to your values
33.25 = a/1-r
And 7.98 = ar^1
young crane
33.25 = a/1-r
Change subject and make this a = …
young crane
And 7.98 = ar^1
Then insert it here
Could you start the process so it would be easier to understand?
You will get a quadratic equation
Hence “possible values “
restive river
Okay Thanks wait let me try it
Sorry for h ttg e lage response i was doing other wuestion
young crane
No problem
restive river
Ok so I made
The equation
Into 7,98/r/1-r
=33.25
But idk how to put this into a gdc
young crane
Could you take a picture of this? @restive river
devout snowBOT
@restive river Has your question been resolved?
restive river
Oh okay tysmm @young crane
restive river
.close
restive river
Let A,B be a subset of X, show that:
devout snowBOT
Let A,B be a subset of X, show that:
pseudo basin
!status
devout snowBOT
What step are you on?
1. I don't know where to begin
2. I have begun but got stuck midway
3. I got an answer but I'm told it's wrong
4. I got an answer and would like my work checked
5. I have a question about someone else's worked solution
6. None of the above
stark shuttle
!show
devout snowBOT
Show your work, and if possible, explain where you are stuck.
deep vortex
(this has been asked on MSE: https://math.stackexchange.com/questions/3582854/power-set-proof?noredirect=1, the first question in this post, answered in the first answer)
devout snowBOT
@restive river Has your question been resolved?
restive river
(this has been asked on MSE: <https://math.stackexchange.com/questions/3582854/p...
oh thanks!
.close
devout snowBOT
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Available help channel!
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boreal island
so we know when objects are in freefall they have an acceleration of 9.81m/s^2
and we know after how much time both of the balls hit the ground
lol
sure
first we need to find the amount of time you brother was running for from when you let go of the balloon
so we need to find the time from whenn you released it and it hit your brother
you drop the balloon from rest
the brother is runnning at 2.65m/s^2
1s
so the distance from the window to your brother is 6.35-1.25 which is 5.1
the brother is at a constant speed meanwhile the ballon droppinng in free fall is using the gravitational acceleration
the formula for the time here is
t = sqrt(h/a)
if im not mistaken
so we find the. time by plugginng in the values there
a = v/t = (s/t)/(t/1) = s/t^2
a = s/t^2
a/s = 1/t^2
s/a = t^2
sqrt(s/a) = t
i got roughly 0.788 ;-;
wait
i misstyped
why 2s?
well the book is probably right
soo
i guess the time is 1.2 around
boreal island
I need help?
go to an available help channel
glad sun
ok
boreal island
1 catagory above this onne
so yeah as we were sayinng
v=s/t
s=vt
s=2.65m/s*1.02
since were dealing with consistent velocity
yeah i forgot earlier that the formulas for finding time and distance in acceleration and velocity are different ;-;
yoooooooo
thank you
you too
devout snowBOT
glad sun
Laito
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Available help channel!
vestal notch
devout snowBOT
vestal notch
Can someone explain how I'm wrong
gilded agate
"b" or the intercepted part of y-axis is also different in both lines
vestal notch
The way I saw it is that since the line f is going down slope must be negative and y intercept is 4 so must be positive
Still don't understand
livid carbon
b is the y-intercept of g(x)
gilded agate
The way I saw it is that since the line f is going down slope must be negative a...
Except that b is a variable so it could be either positive or negative
It doesn't have to be positive
vestal notch
But it can be right...?
gilded agate
Well yes it can be but by looking at the graph, line g cuts the negative part of y axis so it's negative
vestal notch
Aren't we looking for line f?
gilded agate
Yes but line g's equation is given so we're basically comparing both lines
Like checking whether the signs of the slope and the intercepted part of y axis are similar or not if they're similar we just leave it the way it is if they're not we change the sign of the variable
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hazy sleet
I’m blanking rn so what’s my next step here
devout snowBOT
I’m blanking rn so what’s my next step here
supple knot
I’m blanking rn so what’s my next step here
how'd you get your denominator
your numerator should be the denominator
hazy sleet
Oh crap yeah
Ok so I’ve switched them
Now what
Waaait
Would I manually plug in 4+h for x and that gives me the y then I can just solve the equation to prove the aroc to be h+13
supple knot
what's $y$ when $x=4+h$ ?
woven radishBOT
riemann
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gilded nova
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@gilded nova Has your question been resolved?
lavish knoll
so is that 0.67 hours?
Yes
lavish knoll
It's not intuitive
lavish knoll
But fuck it, doesn't matter for your question
gilded nova
i multiple it with 60 right
lavish knoll
ok well is 0.67 of an hour like 45 minutes or soemthing?
0.67 hours * 60min = 40min
gilded nova
okk
lavish knoll
gilded nova
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gilded nova
devout snowBOT
silver fjord
So the first sentence gives you the information needed to find the distance covered
Can you calculate that?
silver fjord
careful
gilded nova
if im not wrong
silver fjord
that time is in minutes
gilded nova
oh ok
silver fjord
the speed is in km/hr
gilded nova
so 48 hours
silver fjord
nonoononono
40 minutes is not 48 hours lol
40 minutes is definitely less than an hour
gilded nova
oh so I should convert km into m
silver fjord
no
focus on the time
i want you to turn it into hr
what is 40min in terms of hour
silver fjord
So you have 40minutes, right? There are 60 minutes in 1 hour
gilded nova
*not
silver fjord
So to convert, you get
silver fjord
ok i'll let you do it
gilded nova
I completely forgot 
gilded nova
OMG
silver fjord
hahaha
gilded nova
yea
silver fjord
at 72km/hr
gilded nova
yea
silver fjord
so the triangle is saying to find distance, you multiply the time it took, and the speed
72km/hr * (2/3hr)
gilded nova
oh ok
silver fjord
$72\frac{km}{hr} * \frac{2}{3} hr$
woven radishBOT
TooManyCooks
silver fjord
As you can see, the hr cancels
silver fjord
Yes
gilded nova
oh ok
silver fjord
So, now you know the total distance traveled
The problem is now giving you a different scenario
What if you drive faster?
So instead of 72, you drive 80
It's asking for t. You can use the triangle again
gilded nova
soo 80km/hr * 2/3hr?
gilded nova
oh
silver fjord
that's what you're looking for
gilded nova
ohh
silver fjord
Yeah that's it
Good job
So now it's asking what the diffrence in time is
You just subtract the previous time to the new time
gilded nova
but its a decimal
gilded nova
ohh
silver fjord
then you can convert using 60min/1hr
gilded nova
oh ok tysm
@silver fjord i got 0.06
how do i change that into time
also so sorry for tagging u
silver fjord
No I prefer it.
I lose track of the threads I go to
SO that .06666667 hrs
you need that in minutes
gilded nova
yea
silver fjord
$(\text{time in hr}) \frac{60min}{1 hr}$
woven radishBOT
TooManyCooks
gilded nova
so i do 0.067 60min/1hr
gilded nova
i got 4.02
silver fjord
if you do it exactly, without using decimals, it should be exactly 4
that's why I wanted you to work with fractions
gilded nova
oh ok
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fervent viper
after solving i got 50/7 but apparently thats not correct?
devout snowBOT
after solving i got 50/7 but apparently thats not correct?
devout snowBOT
@fervent viper Has your question been resolved?
fervent viper
How did you get that
I guess I made a wrong step somewhere
Do i need to find derivitage of top and bottom first off?
silver fjord
All you need is the fact that $\lim_{x\to0} \frac{\sin(a x^2)}{x^2} = a$
woven radishBOT
TooManyCooks
fervent viper
So, the sin^2 does not make a difference?
This was my thoguht process
splitting it apart
shrewd skiff
devout snowBOT
shrewd skiff
so I recalculated this thing like 3 times but I keep getting the same answer
but it says most of them are wrong so idk what's up
gilded agate
How did you calculate them?
shrewd skiff
well just trig
for f2 I took the arctan of 12/5 and used that angle to find the x and y components
for f1 i'm assuming the x component is negative since it's pointing left
that's been the case for previous problems anyway
gilded agate
I mean this is correct so maybe you messed up the angles
devout snowBOT
so I recalculated this thing like 3 times but I keep getting the same answer
Show your work, and if possible, explain where you are stuck.
restive river
Sobbing
Yeah, show work 😭
I've got a similar answer
Your magnitude makes no sense
How is the magnitude less than a single component
shrewd skiff
restive river
I got the exact same answer
shrewd skiff
perhaps you need to neglect any negatives for some reason?
I can try...
nope, still wrong
restive river
what did you put this time?
shrewd skiff
shrewd skiff
no I just got rid of the negative in front of 321 lol
woven radishBOT
Brandon H#1125
restive river
yeah, that makes no sense
shrewd skiff
<@&286206848099549185> can you guys provide any input on this? Maybe something is being overlooked in our calculations?
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@shrewd skiff Has your question been resolved?
shrewd skiff
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eager loom
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eager loom
can someone confirm this is wrong
this is the answer key and i think it's wrong
how come is it -2log base 10 of (x+3)
bruh
it's -2 log base 10 of x
tall knoll
it should just be x not x+3 for sure
tall knoll
np
eager loom
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