SOLUTION: The population of a country is about 1.24 billion people. Assume that the population of the country continues to grow exponentially at the growth rate of 0.8% per year. Thus, the

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Question 977205: The population of a country is about 1.24 billion people. Assume that the population of the country continues to grow exponentially at the growth rate of 0.8% per year. Thus, the expected population of the country, in billions of people, t years after this year, is given by the function P(t)-1.24e^0.008t. Determine the expected population of the country after 9 years.
Substitute the given number of years for t in the equation, then solve for P(t).
Substitute 9 for t
P(9)=1.24e^0.008(9)
Then I get stuck, what do I do next?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
You are not stuck. You just did not compute the result after substituting for t=9. Just do the computation. You have a table of logarithms or a scientific or graphing calculator?

P%289%29=1.24%2Ae%5E%280.008%2A9%29

P=1.24%2Ae%5E%280.072%29

Using Windows 7 Home Premium Calculator in its scientific view form,
[0][.][0][7][2]
[Inv]
[e%5Ex]
Displayed result, 1.0746553440638136203348360205147
... and then multiply that by 1.24, and take just three significant figures for the final answer.