castilloa727195 castilloa727195

22-04-2021
Mathematics

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A sample of a radioactive isotope had an initial mass of 450 mg in the year 2005 and decays exponentially over time. A measurement in the year 2012 found that the sample's mass had decayed to 310 mg. What would be the expected mass of the sample in the year 2017, to the nearest whole number?

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popstarlizzy4 popstarlizzy4

25-04-2021

Answer: 238

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