NEWSPAPER CIRCULATION It is estimated that tyears from now, the circulation of a local newspaper will be C(t) = 100 t2 + 400t + 5,000.
a.Derive an expression for the rate at which the circulation will be changing with respect to time tyears from now.
b.At what rate will the circulation be changing with respect to time 5 years from now? Will the circulation be increasing or decreasing at that time?
c.By how much will the circulation actually change during the sixth year?
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