The count in a bacteria culture was 900 after 10 minutes and 1500 after 40 minutes. Assuming the count grows exponentially, What was the initial size of the culture?   Find the doubling period.   Find the population after 80 minutes.   When will the population reach 15000.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
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Chapter6: Exponential And Logarithmic Functions
Section6.7: Exponential And Logarithmic Models
Problem 23SE: A substance has a half-life of 2.045 minutes. If the initial amount of the substance was 132.8...
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The count in a bacteria culture was 900 after 10 minutes and 1500 after 40 minutes. Assuming the count grows exponentially,

What was the initial size of the culture?  

Find the doubling period.  

Find the population after 80 minutes.  

When will the population reach 15000.

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