A sociologist determines that a foreign-language student has learned N(t) = 20t - 2 vocabulary terms after t hours of

Question

A sociologist determines that a foreign-language student has learned N(t) = 20t - 2 vocabulary terms after t hours of uninterrupted study.
a. How many terms are learned between times t = 2 and t = 3?
b. What is the rate, in terms per hour, at which the student is learning at time t = 2?
c. What is the maximum rate, in terms per hour, at which the student is learning?

Kunduz · Accepted Answer

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