Mathematics, 03.12.2019 05:31 stmy1969
The half life of pb-210 is 22 years. a decayed animal shows 25% of the original pb-210 remains; how long has the animal been deceased to the nearest tenth of a year?
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, where,
, we will get:
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The half life of pb-210 is 22 years. a decayed animal shows 25% of the original pb-210 remains; how...
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