, where A is the initial amount of the
The amount of a sample remaining after t days is given by the equation P(1)
sample and h is the half-life, in days of the substance. A scientist has a 10-mg sample of a radioactive isotope. The isotope
has a half-life of 8 days. After 16 days, how much of the radioactive isotope remains?
2.0 mg
2.5 mg
5.7 mg
7.1 mg
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