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The bacteria in a culture increased from 600 at 1:00 P.M. to 3600 at 6:00 P.M....

The bacteria in a culture increased from 600 at 1:00 P.M. to 3600 at 6:00 P.M.

(a) Find the expression for the number of bacteria t hours after 1:00 P.M.
Q(t) =  



(b) Find the number of bacteria that will be present at 7:00 P.M. (Round your answer to the nearest whole number.)
bacteria

(c) When will the population reach 18,000? (Round your answer to one decimal place.)
hr

(d) How long does it take the population to double in size? (Round your answer to one decimal place.)
hr

Math   Precalculus   
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