A certain culture of the bacterium Rhodobacter sphaeroides initially has 15 bacteria and is observed to double every 5 hours. (a) Find an exponential model  n(t) = n02t/a  for the number of bacteria in the culture after t hours. n(t) =        (b) Estimate the number of bacteria after 17 hours. (Round your answer to the nearest whole number.)  bacteria (c) After how many hours will the bacteria count reach 1 million? (Round your answer to one decimal place.)

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 2ECP
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A certain culture of the bacterium Rhodobacter sphaeroides initially has 15 bacteria and is observed to double every 5 hours.

(a) Find an exponential model 
n(t) = n02t/a
 for the number of bacteria in the culture after t hours.
n(t) = 
 
 
 


(b) Estimate the number of bacteria after 17 hours. (Round your answer to the nearest whole number.)
 bacteria

(c) After how many hours will the bacteria count reach 1 million? (Round your answer to one decimal place.)
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