SOLUTION: The number of grams of a certain radioactive substance present at time t is given by the formula A=200e^-0.005t, where t is the number of years. Find the number of grams that are p

Question 1083384: The number of grams of a certain radioactive substance present at time t is given by the formula A=200e^-0.005t, where t is the number of years. Find the number of grams that are present at time t=0 and at time t=800
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
You have your formula:
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You are given the independent variable values to use:

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Make the substitutions and evaluate the result for each:

,
which is not complicated...

AND for the other, use a hand-held calculator for
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