document.write( "Question 975955: Find the half-life to the nearest tenth of a year of a radioactive substance that decays from 65 mg to 17.55 mg in 20years according to the exponential decay model y = ae^−bx where a is the initial amount and y is the amount remaining after x years. \n" ); document.write( "

Algebra.Com's Answer #597655 by solver91311(24713) $\"\"$ $\"About$

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