Answer Happy

M A rock is thrown into a still pond. The circular ripples move outward from the point of impact of the rock so that the radius of the circle formed by a ripple increases at the rate of 5 feet per minute. Find the rate at which the area is changing at the instant the radius is 14 feet. When the radius is 14 feet, the area is changing at approximately (Round to the nearest thousandth as needed.) CID square feet per minute.

An ice cube that is 7 cm on each side is melting at a rate of 2 cm³ per minute. How fast is the length of the side decreasing? At the moment when the ice cube is 7 cm on each side, the side length is decreasing at a rate of approximately cm per minute. (Type an integer or decimal rounded to three decimal places as needed.)