document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1207769>Question 1207769</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 39-ounce can of Hills Bros.® coffee requires 188.5 square inches of aluminum. If its height is 7 inches, what is its radius? \r<BR>\n" );
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document.write( "[Hint: The surface area S of a right cylinder is S = 2(pi)(r^2) + 2(pi)rh, where r is the radius and h is the height.\r<BR>\n" );
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document.write( "I say the set up I'd this:\r<BR>\n" );
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document.write( "188.5 = 2(pi)(r^2) + 2(pi)7r\r<BR>\n" );
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document.write( "I now must find r.\r<BR>\n" );
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document.write( "Yes?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #845824 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=845824\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Taking the clue\r<BR>\n" );
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document.write( " S = 2(pi)(r^2) + 2(pi)rh,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=188.5+=+2%2Api+%2A+r%5E2%2B+2%2Api%2Ar%2Ah ALIGN=MIDDLE  ALT=\"188.5+=+2%2Api+%2A+r%5E2%2B+2%2Api%2Ar%2Ah\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=188.5+=+2%2Api+%2A+r%5E2%2B+2%2Api%2Ar%2A7 ALIGN=MIDDLE  ALT=\"188.5+=+2%2Api+%2A+r%5E2%2B+2%2Api%2Ar%2A7\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=188.5+=+2%2Api+%2A+r%5E2%2B+14%2Api%2Ar ALIGN=MIDDLE  ALT=\"188.5+=+2%2Api+%2A+r%5E2%2B+14%2Api%2Ar\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Divide equation by 2 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi ALIGN=MIDDLE  ALT=\"pi\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=188.5%2F%282%2Api%29+=++r%5E2%2B+7%2Ar ALIGN=MIDDLE  ALT=\"188.5%2F%282%2Api%29+=++r%5E2%2B+7%2Ar\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30+=+r%5E2%2B7r ALIGN=MIDDLE  ALT=\"30+=+r%5E2%2B7r\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2%2B7r-30=0 ALIGN=MIDDLE  ALT=\"r%5E2%2B7r-30=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "(x+10)(x-3)=0\r<BR>\n" );
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document.write( "x=3 or x=10\r<BR>\n" );
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document.write( "x= 3 taking positive value\r<BR>\n" );
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document.write( "The radius of the coffee can is 3 inches.\r<BR>\n" );
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