3. Suppose that 200 fish are inIIoduced into a protected lake. The fish population can be approximated P _ 200 +40 t —m , with tbeing the time in years since the fish were introduced into the lake. by a. (3 points) Determine the time needed for the fish population to reach 500. b. (3 points) Determine the average rate of change of the fish population with respect to time from 4 years until 12 years since the fish were introduced into the lake.
3. Suppose that 200 fish are inIIoduced into a protected lake. The fish population can be approximated
P _ 200 +40 t —m , with tbeing the time in years since the fish were introduced into the lake. by a. (3 points) Determine the time needed for the fish population to reach 500. b. (3 points) Determine the average rate of change of the fish population with respect to time from 4
years until 12 years since the fish were introduced into the lake.