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OpenStudy (anonymous):
Solve the problem: The amount of a radioactive substance present, in grams, at time t in months is given by the formula y=9000(3)^-0.2t. Find the number of grams present in 3 years. If necessary, round to three decimal places.
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imqwerty (imqwerty):
put t=3 ans use a calculator
OpenStudy (anonymous):
Is the answer, 21674.022?
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