The radius of the base of a cylinder is decreasing at a rate

Last updated: 7/9/2022

The radius of the base of a cylinder is decreasing at a rate of 12 kilometers per second. The height of the cylinder is fixed at 2.5 kilometers. At a certain instant, the radius is 40 kilometers. What is the rate of change of the volume of the cylinder at that instant (in cubic kilometers per second)? Choose 1 answer: A -360π B -2400π C -4000π D -1600π