ADDRESS THESE 2 QUESTIONS AND SHOW WORK PLEASE! - The area of a...

ADDRESS THESE 2 QUESTIONS AND SHOW WORK PLEASE! - The area of a circle increases at a rate of 1 cm^2/s. a. How fast is the radius changing when the radius is 4 cm? b. How fast is the radius changing when the circumference is 4 cm? When the radius is 4 ?cm, the radius is changing at a rate of ______________ ———————————————————— - The edges of a cube increase at a rate of 5 cm/s. How fast is the volume changing when the length of each edge is 30 cm? ————————————————————— - A circle has an initial radius of 50 ft when the radius begins decreasing at the rate of 2 ?ft/min. What is the rate in the change of area at the instant that the radius is 17 ft? The rate of change of the area is