Mathematics, 23.07.2019 04:00 vlactawhalm29

If a sample of radioactive material has only 12.5% of the original radioactive parent material, how many half-lives have passed? a. 3 b. 5 c. 6.25 d. 12.5

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If a sample of radioactive material has only 12.5% of the original radioactive parent material, how...

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