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# Math2413 Homework2A Name______________________________________ Showallwork! 1. Thenumberofbacteriainacertainexperimentcanbemodeledby t B( t ) =

I am confused on questions two and three. I'm having a hard time coming up with the answer to 2a, 2c, 1d, and 3.
Math 2413 Homework 2A Name______________________________________ Show all work! 1. The number of bacteria in a certain experiment can be modeled by B ( t ) = 200(1.035) t 2 , where t is the number of days since the experiment began. a. How many bacteria did the experiment begin with? b. How many bacteria will be present after 1 week? c. When will the number of bacteria reach 1000? d. By what percentage is the number of bacteria changing each day? 2. The number of subscribers to a certain internet provider have been decreasing by 4.5% per year since the year 2000, when there were 484,350 subscribers. a. Find an equation to model the number of subscribers as a function of the number of years since 2000. b. Determine when the model predicts the number of subscribers will reach 100,000. c. Describe as fully as you can the rate of change of the number of subscribers. 3. Fill in the following table, assuming exponential change: x 1 2 5 7 12 y 48 99.533
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Math 2413 Homework 2A
Name______________________________________ Show all work! 1. The number of bacteria in a certain experiment can be modelled by is the number of days since the experiment...

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