Posted by **Alex** on Tuesday, November 3, 2009 at 5:21pm.

Suppose that a population of bacteria triples every hour and starts with 700 bacteria.

(a) Find an expression for the number n of bacteria after t hours.

n(t) = ?

(b) Estimate the rate of growth of the bacteria population after 1.5 hours. (Round your answer to the nearest hundred.)

n'(1.5) = ?

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