Mathematics, 26.10.2021 19:10, rubes08

A sample of a radioactive isotope had an initial mass of 650 mg in the year 1994 and decays exponentially over time. A measurement in the year 1996 found that the
sample's mass had decayed to 570 mg. What would be the expected mass of the
sample in the year 2005, to the nearest whole number?

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A sample of a radioactive isotope had an initial mass of 650 mg in the year 1994 and decays expone...