8. [-/10 Points] DETAILS
HARMATHAP12 10.2.039.
MY NC
Suppose that a company's daily sales volume attributed to an advertising campaign is given by the following equation.
8
64
S(t) =
+ 3
t + 2
(t + 2)2
(a) Find how long it will be before sales volume is maximized.
t =
days
(b) Find how long it will be before the rate of change of sales volume is minimized. That is, find the point of diminishing returns.
days