Question

the radius r of a right circular cone is increasing at a rate of 2cm/min.the height h of the cone is related to the radius by h=3r.find the rate of change of the volume when r=6cm

Answer 1

v = 1/3 π r^2 h = 1/3 π r^2 (3r) = πr^3

dv/dt = 3πr^2 dr/dt

now plug in your numbers.

Answer 2

ican do the question please help me