document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167018>Question 1167018</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 	A tunnel has the shape of a semi ellipse that is 15 ft high at the center, and 36 ft across at the base. At most how high should a passing truck be, if it is 12 ft wide, for it to be able to fit through the tunnel?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #791658 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=791658\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The horizontal major axis is 36 feet, so the semi-major axis is 18.<br><BR>\n" );
document.write( "The vertical semi-minor axis is 15 feet.<br><BR>\n" );
document.write( "The equation of the ellipse is<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2F18%5E2%2By%5E2%2F15%5E2=1 ALIGN=MIDDLE  ALT=\"x%5E2%2F18%5E2%2By%5E2%2F15%5E2=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "The truck will just fit through the tunnel if its sides are 6 feet each side of the center.  So the problem is asking for the height of the tunnel (y) when x=6.<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%5E2%2F18%5E2%2By%5E2%2F15%5E2=1 ALIGN=MIDDLE  ALT=\"6%5E2%2F18%5E2%2By%5E2%2F15%5E2=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "You can do the arithmetic to find the answer....<br><BR>\n" );
document.write( " </SPAN>\n" );
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