document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=732603>Question 732603</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the radius of a cone that has Surface Area of 219.91 in^2 and a slant height of 9 in?\r<BR>\n" );
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document.write( "I set up the problem:  219.91=(PI)r^2 + 9(PI)r\r<BR>\n" );
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document.write( "I can't figure out the steps to solve this problem.  I think I am missing information? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #448079 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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/cgi-bin/show-face.mpl?user=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=448079\">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=219.91=%28pi%29r%5E2+%2B+9%28pi%29r ALIGN=MIDDLE  ALT=\"219.91=%28pi%29r%5E2+%2B+9%28pi%29r\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=219.91%2Fpi=r%5E2+%2B+9r ALIGN=MIDDLE  ALT=\"219.91%2Fpi=r%5E2+%2B+9r\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=70=r%5E2+%2B+9r ALIGN=MIDDLE  ALT=\"70=r%5E2+%2B+9r\"   DISABLED_style= \"max-width:90%; height:auto;\" > (rounding)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=70=r%5E2+%2B+9r ALIGN=MIDDLE  ALT=\"70=r%5E2+%2B+9r\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2+%2B+9r-70=0 ALIGN=MIDDLE  ALT=\"r%5E2+%2B+9r-70=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "You can solve that quadratic equation easily by factoring:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2+%2B+9r-70=0 ALIGN=MIDDLE  ALT=\"r%5E2+%2B+9r-70=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r%2B14%29%28r-5%29=0 ALIGN=MIDDLE  ALT=\"%28r%2B14%29%28r-5%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r=5%29 ALIGN=MIDDLE  ALT=\"highlight%28r=5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > because <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=-14 ALIGN=MIDDLE  ALT=\"r=-14\"   DISABLED_style= \"max-width:90%; height:auto;\" > does not make sense. </SPAN>\n" );
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