document.write( "Question 481311: Suppos you have 500 grams of a radioactive element whose half-life is 72 years.
\n" ); document.write( "Find the function for the quantity, Q, left in t years. \n" ); document.write( "

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Suppose you have 500 grams of a radioactive element whose half-life is 72 years.
\n" ); document.write( "Find the function for the quantity, Q, left in t years.
\n" ); document.write( ":
\n" ); document.write( "Q = 500*2(-t/72) \n" ); document.write( "

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