document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=703617>Question 703617</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A can of beans has surface area 363 cm^2. Its height is 10 cm. What is the radius of the circular top?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #433593 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=433593\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A can of beans has surface area 363 cm^2. Its height is 10 cm. What is the radius of the circular top?\r<BR>\n" );
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document.write( "total surface area=area of side+area of top+area of bottom<BR>\n" );
document.write( "let r=radius<BR>\n" );
document.write( "area of side=height*circumference of circular ends=10*2&#960;r=20&#960;r<BR>\n" );
document.write( "area of top and bottom=2*&#960;r^2<BR>\n" );
document.write( "20&#960;r+2&#960;r^2=363<BR>\n" );
document.write( "2&#960;r^2+20&#960;r-363=0<BR>\n" );
document.write( "solve for r using following quadratic formula:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "a=2&#960;, b=20&#960;, c=-363<BR>\n" );
document.write( "ans: r&#8776;4.098 cm<BR>\n" );
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