document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042169>Question 1042169</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A Contagious disease enters a college campus, and the number of students infected by the disease is given by n=15000/(1+999e^(-0.8x)) where x is the number of days after the disease appears on a campus. \r<BR>\n" );
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document.write( "a.) How many students had the disease when it appeared on campus?<BR>\n" );
document.write( "b.) What is the upper limit of the number of students infected by the disease? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #657114 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=657114\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A Contagious disease enters a college campus, and the number of students infected by the disease is given by N(x) = 15000/(1+999^-0.8e^x) where x is the number of days after the disease appears on a campus. <BR>\n" );
document.write( "a.) How many students had the disease when it appeared on campus?<BR>\n" );
document.write( "N(0) = (15000/(1+999^0) = 15000/1000 = 15<BR>\n" );
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document.write( "b.) What is the upper limit of the number of students infected by the disease?<BR>\n" );
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document.write( "As x increases, 999^-0.8e^x approaches zero.<BR>\n" );
document.write( "Ans:: upper limit = 15000/1 = 15000 <BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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