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Chrysti
Aug 11, 2009, 02:16 PM
use this model to determine in how many years(to two decimal places) it will take for the percent of spam to reach 95% provided that law enforcement regarding spammers does not change.


model is P=13+45ln x (x=number of years after 2000)


"show all work please"

s_cianci
Aug 11, 2009, 02:21 PM
Set your 13 + 45 Ln x = 95 and solve for x. A scientific or graphing calculator will be helpful.

Chrysti
Aug 11, 2009, 02:33 PM
I'm not too sure how to get the answer can you help me?

ArcSine
Aug 11, 2009, 03:27 PM
A couple of hints:

Start by isolating "ln x" on one side of the equation.

Then use the fact that if

a = ln x

then

e^a\ =\ x