document.write( "Question 1156944: Strontium 90 is a radioactive material that decays according to the function Upper A left parenthesis t right parenthesis equals Upper A 0 e Superscript negative 0.0244 t Baseline comma where Upper A 0 is the initial amount present and A is the amount present at time t​ (in years). Assume that a scientist has a sample of 400 grams of strontium 90. \n" ); document.write( "
Algebra.Com's Answer #779741 by josgarithmetic(39617)\"\" \"About 
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Why you try to express the function like that? \"Upper A left parenthesis t right parenthesis equals Upper A 0 e Superscript negative 0.0244 t Baseline comma\"\r
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\n" ); document.write( "\n" ); document.write( "If you intend to say or show as \"A%28t%29=A%5Bo%5Dd%5E%28-0.0244t%29\" then do it just this way.
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