document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1184728>Question 1184728</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An arch is in the form of a semiellipse. It is 48 ft wide at the base and has a<BR>\n" );
document.write( "height of 20ft. How wide is the arch at a height of 10 ft above the base? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #815576 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=815576\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An arch is in the form of a semiellipse. It is 48 ft wide at the base and has a<BR>\n" );
document.write( "height of 20ft. How wide is the arch at a height of 10 ft above the base?<BR>\n" );
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document.write( "Equation of the ellipse is (center at the Origin)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2F576+%2B+y%5E2%2F400+=+1 ALIGN=MIDDLE  ALT=\"x%5E2%2F576+%2B+y%5E2%2F400+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---<BR>\n" );
document.write( "At y = 10:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2F576+%2B+100%2F400+=+1 ALIGN=MIDDLE  ALT=\"x%5E2%2F576+%2B+100%2F400+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2F576+=+3%2F4 ALIGN=MIDDLE  ALT=\"x%5E2%2F576+=+3%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+=+432 ALIGN=MIDDLE  ALT=\"x%5E2+=+432\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = ~20.78 (each side of the Origin)<BR>\n" );
document.write( "Width = ~ 41.57 feet<BR>\n" );
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