Oil is leaking from an oil tanker, and an expanding circle of oil is spreading on the ocean. The radius, r, of the circle measured in inches is modeled by the function r(s)=3 sqrt s, where s is time in seconds. The area of the spill when s=5 seconds is ___ pi square inches.

Step-by-step explanation:

The radius, r of the expanding circle of oil is modeled by the function:

, where s is time in seconds.

When s=5

Area of a circle

Therefore, area of the oil spill when s=5 seconds is:

The area of the spill when s=5 seconds is 45pi square inches.

the answer is 1/4

step-by-step explanation: