document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=720787>Question 720787</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:\r<BR>\n" );
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document.write( "        m(T)=8e^(-0.098T)\r<BR>\n" );
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document.write( "where m(T) is measured in gram.\r<BR>\n" );
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document.write( "    a.) find the initial mass.<BR>\n" );
document.write( "    b.) how much of the mass remains after 30 days. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #441963 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=441963\">put this solution on YOUR website!</A><BR><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)=8e^(-0.098T) where m(T) is measured in grams. \r<BR>\n" );
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document.write( "a.) find the initial mass.<BR>\n" );
document.write( "m(0) = 8^e^(0)<BR>\n" );
document.write( "m(0) = 8 grams<BR>\n" );
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document.write( "b.) how much of the mass remains after 30 days.<BR>\n" );
document.write( "m(30) = 8*e^(-0.098*30) = 8*0.0529<BR>\n" );
document.write( "m(30) = 0.4229 grams<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "========================= </SPAN>\n" );
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