Overview
suppose that the amount in grams of a radioactive substance present at time t (in years) is given by A(t) 820e^-0.21t. Find the quantity present at the time when t=5. round your answer to one decimal place.
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suppose that the amount in grams of a radioactive substance present at time t (in years) is given by A(t) 820e^-0.21t. Find the quantity present at the time when t=5. round your answer to one decimal place.