AP Calculus AB 2015 Thread

a

Yeah @RHSclassof16 it was an absolute value integral notation using RRAM because if it wasn’t absolute value the number would’ve been much smaller.

I got A

But I remember the answer being like 2800 or something like that. Maybe I’m thinking of another question entirely though.

@stoopidfoose yeah you might want to delete that quickly

Oh wait wasn’t there the other dude on a bike after the girl for part c and d. Maybe that’s what I’m mixing up.

a

e

@RHSclassof16 ok ty, I got that too for the velocity one

.

For part D on #5 for the equation involving an integral I think I said 3 + from (1 to x) f(t) dt

i think the differential was 2x -y = dy/dx where f(2) = 3 or something similar on the frq

@RHSclassof16 I actually said f(x) = 3 + the integral from 1 to x f’(x) dx

how did you guys find out the points of vertical tangents on that implicitly defined equation, i tried setting the denominator of the derivative =0, but it got me nowher?

what did you guys get for the equation expressing overflow for the pipe past 50 cubic meters of the initial rates

integral from 0 to t of (R(t)-D(t)+ 30=50

@Kylemcgrogan Yep! But the +30 was outside of the integral

yes, my bad for not showing that better

@Kylemcgrogan I did that too, and was stuck…

@eyrar99 you just had to leave it like that if I remember correctly. It said set up but do not solve