Homework Help: Calculus

Posted by Lee on Saturday, January 7, 2012 at 5:13pm.

The population of a county increases at a rate proportional to the existing population. If the population doubles in 20 years, then the factor of probability is

a) 2e^(-30)
b)1/2(ln 20)
c)ln 2
d)1/20(ln 2)
e)ln 20

Calculus - Damon, Saturday, January 7, 2012 at 5:18pm
I have no idea what a "factor of probability" is
p = Pi e^kt
2 = e^20k
ln 2 = 20 k
k = (1/20) ln 2
Calculus - Lee, Saturday, January 7, 2012 at 5:29pm
thanks

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