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January 30, 2015

January 30, 2015

Posted by **Labz** on Sunday, June 10, 2012 at 9:31pm.

- Math - Logorithms -
**Steve**, Monday, June 11, 2012 at 11:44amWe want

I^o(.25) = I^o(.8)^x

.25 = .8^x

ln.25 = x*ln.8

x = ln.25/ln.8 = 6.21

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