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July 29, 2015

Homework Help: Calculus

Posted by Anonymous on Wednesday, July 10, 2013 at 8:53pm.

The radioactive element polonium decays according to the law given below where Q0 is the initial amount and the time t is measured in days.
Q(t) = Q0 2-(t/140)
If the amount of polonium left after 700 days is 45 mg, what was the initial amount present?
mg

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