document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=139858>Question 139858</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ramp-to-ground motorcycle jump can be modeled by the quadratic function <BR>\n" );
document.write( "h = -0.0022d2 + 0.46d + 19, <BR>\n" );
document.write( "where d is the distance in feet along the ground from where the motorcycle left the ramp and h is the height of the motorcycle in feet. How long was the jump? <BR>\n" );
document.write( "Round your answer to two decimal places. The units will be typed in the second box.<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 #101973 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=101973\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A ramp-to-ground motorcycle jump can be modeled by the quadratic function <BR>\n" );
document.write( "h = -0.0022d2 + 0.46d + 19, <BR>\n" );
document.write( "where d is the distance in feet along the ground from where the motorcycle left the ramp and h is the height of the motorcycle in feet. How long was the jump? <BR>\n" );
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document.write( "Height will be zero when the motocycle hits the ground.<BR>\n" );
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document.write( "-0.0022d^2 + 0.46d + 19 = 0\r<BR>\n" );
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document.write( "d = [-0.46 +- Sqrt(0.46^2 - 4*-0.0022*19)]/(2*-0.0022)\r<BR>\n" );
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document.write( "d = [-0.46 +- sqrt(0.21206...)/(-0.0044)<BR>\n" );
document.write( "Positive Solution:<BR>\n" );
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document.write( "d = [-0.46-0.46]/-0.0044\r<BR>\n" );
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document.write( "d = 209.09 ft<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.[\r<BR>\n" );
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