document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154523>Question 1154523</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A radioactive substance decays in such a way that the amount of mass remaining after t days is given by the function<BR>\n" );
document.write( "m(t) = 15e−0.012t<BR>\n" );
document.write( "where m(t) is measured in kilograms.<BR>\n" );
document.write( "(a) Find the mass at time t = 0.<BR>\n" );
document.write( "kg\r<BR>\n" );
document.write( "\n" );
document.write( "(b) How much of the mass remains after 41 days? (Round your answer to one decimal place.) </SPAN>\n" );
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document.write( "m(t) = 15e−0.012t<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=should ALIGN=MIDDLE  ALT=\"should\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=be ALIGN=MIDDLE  ALT=\"be\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%28t%29=15e%5E%28-0.012t%29 ALIGN=MIDDLE  ALT=\"m%28t%29=15e%5E%28-0.012t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "where m(t) is measured in kilograms.<BR>\n" );
document.write( "(a) Find the mass at time t = 0.<BR>\n" );
document.write( "kg\r<BR>\n" );
document.write( "\n" );
document.write( "(b) How much of the mass remains after 41 days? (Round your answer to one decimal place.)<BR>\n" );
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document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Your questions are only a matter of substitution and evaluating. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );