document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1045206>Question 1045206</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A single lane street 10 ft. wide goes through a semicircular tunnel with radius 9 ft. How high is the tunnel at the edge of each lane? Round off to 2 decimal places. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #660636 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=660636\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A single lane street 10 ft. wide goes through a semicircular tunnel with radius 9 ft. How high is the tunnel at the edge of each lane?<BR>\n" );
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document.write( "Each lane?<BR>\n" );
document.write( "Says single lane.<BR>\n" );
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document.write( "The equation of the tunnel is x^2 + y^2 = 81<BR>\n" );
document.write( "The height at each side is the y-value of the intersection of the circle and x = 5.<BR>\n" );
document.write( "x^2 + y^2 = 81<BR>\n" );
document.write( "25 + y^2 = 81<BR>\n" );
document.write( "y^2 = 56<BR>\n" );
document.write( "y = sqrt(56) =~ 7.48 feet\r<BR>\n" );
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