Posted by **math help** on Sunday, December 5, 2010 at 5:51pm.

the population P(t) of a new residential development t years after 2010 is P(t)=8000(1-e^-0.3). 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 -
**Reiny**, Sunday, December 5, 2010 at 8:53pm
To evaluate e^(-.15) without a calculator would be beyond the scope of most of today's college students.

- algebra1 -
**Noe**, Monday, February 28, 2011 at 9:14am
5x-2y=4 m= b=

-x+4y=12 m= b=

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