document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=136766>Question 136766</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2. [6 pts.] The gross domestic product (GDP) of a developing country from 1999 (t=0) to<BR>\n" );
document.write( "2007 is approximated by<BR>\n" );
document.write( "f(t) = &#8722;0.2t^3 + 2.4t^2 + 60 (0 <_ t _> 8)<BR>\n" );
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document.write( "where f(t) is measured in billions of dollars. Find the maximum growth rate of the<BR>\n" );
document.write( "country’s GDP in the given period.\r<BR>\n" );
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document.write( "Thank you so much for your time. I have been trying to do this problem for a couple of days now. I work full time and go to school full time so its hard to keep up in class.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #100115 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=100115\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The gross domestic product (GDP) of a developing country from 1999 (t=0) to<BR>\n" );
document.write( "2007 is approximated by f(t) = &#8722;0.2t^3 + 2.4t^2 + 60 (0 <_ t =< 8)<BR>\n" );
document.write( "where f(t) is measured in billions of dollars. Find the maximum growth rate of the country’s GDP in the given period. <BR>\n" );
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document.write( "You could do this in two ways:<BR>\n" );
document.write( "Using a graphing calculator:<BR>\n" );
document.write( "When t=8, f(8) = $111.2 billion<BR>\n" );
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document.write( "If you are studying calculus, take the derivative and set to zero.<BR>\n" );
document.write( "-0.6t^2+4.8t = 0<BR>\n" );
document.write( "-0.6t(t-8) = 0<BR>\n" );
document.write( "t = 8, <BR>\n" );
document.write( "Then f(8) = $111.2 billion<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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