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the population P(t) of a new residential development t years after 2010 is P(t)=8000(1-e^-0.3t). What is the population for 2015?

* algebra - Reiny, Sunday, December 5, 2010 at 6:19pm

replace t with 5 and evaluate using your calculator

(I got 6215)

I was the population to increase in a new development.
Are you sure your formula is correct?

* algebra - math help, Sunday, December 5, 2010 at 6:52pm

6215 is the right answer. What were the steps without a calculator? Thanks!

  • algebra -

    you have to evaluate e^(-5) can be done, by this method (1/e)(1/e)(1/e)(1/e)(1/e) That would be fun multiplying without a calculator.

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