Question

Rates of change help. *Question below*

Answer 1

you're given below :
r = 10
dr/dt = 0.25

Answer 2

start by writing out the equation for Volume of sphere

Answer 3

and differentiate it both sides with.respect.to t

Answer 4

for dV/dt I got 100pi..is that correct?

Answer 5

Correct !

Answer 6

So is that the answer for the rate of the volume increasing?