document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=123665>Question 123665</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please just don't get it....Suppose that the function?<BR>\n" );
document.write( "Suppose that the function P=13+45ln x represents the percentage of inbound e-mail in the U.S. that is consideed spam, where x is the number of years after 2000. \r<BR>\n" );
document.write( "\n" );
document.write( "Carry all calculations to six decimals on each intermediate step, when necessary. \r<BR>\n" );
document.write( "\n" );
document.write( "a) Use this model to approximate the percentage of spam in the year 2003. \r<BR>\n" );
document.write( "\n" );
document.write( "Answer:\r<BR>\n" );
document.write( "\n" );
document.write( "b) Use this model to approximate the year that the percent of spam will reach 95% provided that law enforcement regarding spammers does not change? \r<BR>\n" );
document.write( "\n" );
document.write( "Answer:<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #90713 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=90713\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Suppose that the function P=13+45ln x represents the percentage of inbound e-mail in the U.S. that is consideed spam, where x is the number of years after 2000. <BR>\n" );
document.write( "Carry all calculations to six decimals on each intermediate step, when necessary. <BR>\n" );
document.write( "a) Use this model to approximate the percentage of spam in the year 2003. <BR>\n" );
document.write( "Answer: P(2003-2000) = 13+45ln(3) = 62.4376%<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "b) Use this model to approximate the year that the percent of spam will reach 95% provided that law enforcement regarding spammers does not change?<BR>\n" );
document.write( "95 = 13 + 45ln(x)<BR>\n" );
document.write( "82 = 45ln(x)<BR>\n" );
document.write( "ln(x) = 1.8222<BR>\n" );
document.write( "x = e^1.8222 = 6.1856<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "95% spam will be reached in 2000+6.1856 or in the year 2007 <BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );