document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1140422>Question 1140422</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Certain radioactive material decays in such a way that the mass remaining after t years is given by the function m(t)=280e^−0.015t where m(t) is measured in grams. Do not include units in your answers. \r<BR>\n" );
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document.write( "(a) Find the mass at time t=0<BR>\n" );
document.write( "(b) How much of the mass remains after 35 years? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #760946 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=760946\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%28m%28t%29=280e%5E-0.015t%29 ALIGN=MIDDLE  ALT=\"cross%28m%28t%29=280e%5E-0.015t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "(a) Find the mass at time t=0<BR>\n" );
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document.write( "280, found by inspection and understanding the equation\r<BR>\n" );
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document.write( "(b) How much of the mass remains after 35 years? <BR>\n" );
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