document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=983714>Question 983714</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In 1990, the population of the U.S. was approximately 250 million and was expected to grow according to the function P(x)=250,000,000e^0.009x where x is the number of years after 1990. What will the expected U.S. population be in 2010, according to this model? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #604602 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</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=604602\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The population in 1990 is a very big number with a bunch of digits.  Give it a variable, \"Initial\" population, I.<BR>\n" );
document.write( "You have implied x is time in years and growth constant is k=0.009.  An economical way to solve the problem is to use all variables:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=I%2Ae%5E%28kx%29 ALIGN=MIDDLE  ALT=\"P=I%2Ae%5E%28kx%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Actually not much to solve; just you want to EVALUATE P when x=20, because 2010-1990=20.  You would really keep most of the numbers in place.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%2820%29=250%2A10%5E6%2Ae%5E%280.009%2A20%29 ALIGN=MIDDLE  ALT=\"P%2820%29=250%2A10%5E6%2Ae%5E%280.009%2A20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "A calculator would be easiest.<BR>\n" );
document.write( "Here is available the calculator which comes with Windows o.s.<BR>\n" );
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document.write( "0.18,[inv],[e^x],[=],[*],250,[=],... and then MULTIPLY BY 10^6.<BR>\n" );
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document.write( "RESULT:  299000000 </SPAN>\n" );
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