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March 29, 2015

Homework Help: algebra

Posted by Jessica on Tuesday, November 8, 2011 at 11:45am.

I have no clue where to begin on this problem. Can some one help me please.


One demographer believes that the population growth of a certain country is best modeled by the function P (t) =15 e^.08t, while a second demographer believes that the population growth of that same country is best modeled by the function P (t) =15 +3t. In each case, t is the number of years from the present and P (t) is given in millions of people. For what values of t do these two models give the same population? In how many years is the population predicted by the exponential model twice as large as the population predicted by the linear model?

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