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Mathematics 15 Online
OpenStudy (anonymous):

The half-life of a radioactive substance is the time it takes for half of the material to decay. Phosphorus-32 is used to study a plant's use of fertilizer. It has a half-life of 14.3 days. Write the exponential decay function for a 50-mg sample. Find the amount of phosphorus-32 remaining after 84 days.

OpenStudy (anonymous):

The half-life formula is: |dw:1389736938636:dw|

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