1. The side of a cube increases at the rate of 12 m/sec. Find the rate at which the volume of the cube increases when the side of the cube is 5 m.

1. The side of a cube increases at a rate of 2.5m/s. Find the rate at which the surface area increases when the side is 10 m.

Water is being poured into an inverted cone at the rate of 4 cubic centimeters per second. The cone has a maximum radius of 6cm and a height of 30 cm. At what rate is the height increasing when the height is 3cm? 1 The volume of a cone is v 3 71 1 30