Question: The function W(t) = -3.75t 2 + 30t + 40 describes a typists speed (in words per minute) over a time interval 30, 54. (a)

The function W(t) = -3.75t² + 30t + 40 describes a typist’s speed (in words per minute) over a time interval 30, 54.
(a) Find W(0).
(b) Find the maximum W value and the time t when it occurs.
(c) Find the average speed over [0, 5].

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