document.write( "Question 92001: Lead shielding is used to contain radiation. The percent of a certain radiation that can penetrate x millimeters of lead shielding is given by r(x) = 100e^-1.5x. What percent of radiation, to the nearest tenth of a percent, will penetrate a lead shield that is 3 millimeters thick? \n" ); document.write( "
Algebra.Com's Answer #66832 by mathispowerful(115)\"\" \"About 
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all you need to do is replace x by 3\r
\n" ); document.write( "\n" ); document.write( "so \"r%283%29+=+100e%5E%28-1.5%2A3%29\"\r
\n" ); document.write( "\n" ); document.write( "=\"100e%5E-4.5\"\r
\n" ); document.write( "\n" ); document.write( "= \"100%2A0.0111\"\r
\n" ); document.write( "\n" ); document.write( "= 1.1\r
\n" ); document.write( "\n" ); document.write( "so the answer is 1.1%
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