document.write( "Question 1187783: Find the half-life of a certain radioactive substance which decays according to the
\n" ); document.write( "formula 𝑦 = 100𝑒
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\n" ); document.write( ", where y is the amount present after t years?
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Algebra.Com's Answer #818804 by josgarithmetic(39617)\"\" \"About 
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The notation needs to be done correctly. \n" ); document.write( "
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