document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=719989>Question 719989</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the associated exponential decay or growth model. <BR>\n" );
document.write( "Q = 2,500 when t = 0; half-life = 4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #441620 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=441620\">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=Q=Q%5B0%5De%5E%28kt%29 ALIGN=MIDDLE  ALT=\"Q=Q%5B0%5De%5E%28kt%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Basic Exponential Decay Model.\r<BR>\n" );
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document.write( "Half-life is 4.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F2%29Q%5B0%5D=Q%5B0%5De%5E%28k%2A4%29 ALIGN=MIDDLE  ALT=\"%281%2F2%29Q%5B0%5D=Q%5B0%5De%5E%28k%2A4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2=e%5E%284k%29 ALIGN=MIDDLE  ALT=\"1%2F2=e%5E%284k%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%281%2F2%29=4k%2A1 ALIGN=MIDDLE  ALT=\"ln%281%2F2%29=4k%2A1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=%281%2F4%29ln%281%2F2%29 ALIGN=MIDDLE  ALT=\"k=%281%2F4%29ln%281%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28k=-0.173%29 ALIGN=MIDDLE  ALT=\"highlight%28k=-0.173%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Given is Q=2500 at t=0, so the model for this example is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28Q=2500e%5E%28-0.173t%29%29 ALIGN=MIDDLE  ALT=\"highlight%28Q=2500e%5E%28-0.173t%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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