5. In the real world there are many situations in which some quantity depends on a variable which at the same time, depends on another variable. Suppose that an oil tanker is leaking oil and we want to be able to determine the area o the circular oil patch around the ship. It is determined that the oil is leaking from the tanker in such a way that the radius of the circular oil patch around the ship is increasing at a rate of 3 feet per minute. r(t) = 3t 1-1 notonul p A(r) = aP. a) What will be the area of the spill after 2 minutes? After 5 minutes? After t-minutes? L7

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