Mathematics, 15.06.2021 01:00, thall5026

A sample of a radioactive isotope had an initial mass of 820 mg in the year 1995 and decays exponentially over time. A measurement in the year 2002 found that the
sample's mass had decayed to 380 mg. What would be the expected mass of the
sample in the year 2007, to the nearest whole number?

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A sample of a radioactive isotope had an initial mass of 820 mg in the year 1995 and decays exponen...