A bacteria culture started with 6500 bacteria and increased by 45% in the first 2 hours. (a) Find an expression for the number of bacteria t hours after it was first observed.   (b) Find the number of bacteria that will be present after 8 hours. (Round your answer to the nearest whole number.)  bacteria   (c) When will the population reach 45,000? (Round your answer to one decimal place.)   (d) How long does it take the population to triple in size? (Round your answer to one decimal place.)

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section4.5: Exponential And Logarithmic Equations
Problem 92E
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A bacteria culture started with 6500 bacteria and increased by 45% in the first 2 hours.

(a) Find an expression for the number of bacteria t hours after it was first observed.
 
(b) Find the number of bacteria that will be present after 8 hours. (Round your answer to the nearest whole number.)
 bacteria
 
(c) When will the population reach 45,000? (Round your answer to one decimal place.)
 
(d) How long does it take the population to triple in size? (Round your answer to one decimal place.)
 
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