Mathematics, 14.05.2021 15:10 genyjoannerubiera

A sample of a radioactive isotope that had an initial mass of 200 mg in the year 2000 has been decaying exponentially since. A measurement in the year 2004 found that the sample's mass had decayed to 70 mg. What would be the expected mass of the sample in 2006, to the nearest whole number?

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