document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1079274>Question 1079274</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 1/4 -mile track for racing stock cars consists<BR>\n" );
document.write( "of two semicircles connected by parallel straightaway. In order to provide sufficient room for pit crews,<BR>\n" );
document.write( "emergency vehicles, and spectator parking, the track must enclose an area of 100,000 square feet. Find the length of the<BR>\n" );
document.write( "straightaways and the diameter of the semicircles to the nearest foot.\r<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 #693668 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=693668\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Perimeter in feet,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F4%29mile%2A5280%28feet%2Fmile%29=1320%2Afeet ALIGN=MIDDLE  ALT=\"%281%2F4%29mile%2A5280%28feet%2Fmile%29=1320%2Afeet\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "x, rectangular dimension capped with each semicircle part<BR>\n" );
document.write( "y, rectangular dimension not capped with the semicircle part\r<BR>\n" );
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document.write( "radius of each semicircle is  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F2 ALIGN=MIDDLE  ALT=\"x%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Accounting for perimeter and area and simplifying,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28pi%2Ax%2B2y=1320%2C4xy%2Bpi%2Ax%5E2=400000%29 ALIGN=MIDDLE  ALT=\"system%28pi%2Ax%2B2y=1320%2C4xy%2Bpi%2Ax%5E2=400000%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".\r<BR>\n" );
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document.write( "Solving for y and substituting, and then simplifying,...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pi%2Ax%5E2-2640x%2B40000=0 ALIGN=MIDDLE  ALT=\"pi%2Ax%5E2-2640x%2B40000=0\"   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=x=198 ALIGN=MIDDLE  ALT=\"x=198\"   DISABLED_style= \"max-width:90%; height:auto;\" >, diameter of semicircle parts, in feet<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=349 ALIGN=MIDDLE  ALT=\"y=349\"   DISABLED_style= \"max-width:90%; height:auto;\" >, each straight-way part </SPAN>\n" );
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