Mathematics, 10.03.2020 01:33 alondrahernande3
How much of a radioactive substance must be presented to decay to 40 grams in 9 years if the half-life of the substance is 4.6 years?
Between 140 and 145 grams
Between 145 and 155 grams
Between 155 and 165 grams
Over 165 grams
Answers: 1
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