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April 18, 2014

Homework Help: Math

Posted by Hannah on Thursday, March 8, 2012 at 3:21pm.

ln [5.01E-3] = ln(4.86E-2) - (1.80E-2s-1)(t s) Solve for t.

t = 126 s

First I did 4.86e-2 - 1.80e-2 and then on my calculator I pressed the 2nd button and then ln and got 1.031. Then I did the same thing to get the ln of 5.01e-3 and divided that by 1.031 but did not get 126 as the answer. Where did I mess up?

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