nancygillkaur nancygillkaur
  • 19-03-2024
  • Mathematics
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A scientist begins with 712 mg of a radioactive substance. After 2.5 hours, the sample has decayed to 500 grams. Assume that the amount of substance remaining follows the exponential decay model.

To the nearest thousandth of an hour, how long will it take for the substance to decay to 400 mg?

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