Question

The surface area, S, of a sphere of radius r feet is S = S(r) = 4πr^2. Find the instantaneous rate of change of the surface area with respect to the radius r at r = 8.

Answer 1

16pi right? @danish071996

Answer 2

no 64 pi

Answer 3

we need to know more of a process to determine why you got 16pi in the frrst place. if you are not working the problem correctly, then we can help you fix your mistake.

Answer 4

oh i see what i did

Answer 5

ok