Activity Level In the summer the activity level of a
Chapter 5, Problem 51A(choose chapter or problem)
Problem 51A
Activity Level In the summer the activity level of a certain type of lizard varies according to the time of day. A biologist has determined that the activity level is given by the function
a(t) = 0.008t3 2 0.288t2 + 2.304t + 7,
where t is the number of hours after 12 noon. When is the activity level highest? When is it lowest?
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