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September 1, 2015

Homework Help: math

Posted by Anonymous on Saturday, March 13, 2010 at 11:25pm.

The mass m(t) remaining after t days from a 70 g sample of thorium-234 is given by the equation shown below.
m(t) = 70e-0.0274t

Find the half-life of thorium-234. (Round your answer to the nearest tenth.)

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