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Algebra
Question

If there are initially \( 3.5 \) grams of a radioa...

If there are initially \( 3.5 \) grams of a radioactive substance and \( 2 \) grams remain after \( 7 \) days, what is the half life? 

Use the function \( f ( t ) = Pe^{rt}\)  and round your answer to the nearest day. 

Answer

\(t = 9 \space days\)

Solution
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