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The radioactive substance cesium - 1 3 7 has a half - life of 3 0 years. The amount At ( in grams ) of

The radioactive substance cesium-137 has a half-life of
30
years. The amount
At
(in grams) of a sample of cesium-137 remaining after
t
years is given by the following exponential function.
=At52312t30
Find the amount of the sample remaining after
10
years and after
100
years.
Round your answers to the nearest gram as necessary.

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