document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=878847>Question 878847</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A natural bridge is a stone arch formed over a river or stream. The longest natural <BR>\n" );
document.write( "bridge in the world is the Rainbow Bridge in Utah. If the origin is placed at one end <BR>\n" );
document.write( "of the arch, the curve of the arch can be modelled by the equation <BR>\n" );
document.write( "h=-0.0425d^2+3.57d<BR>\n" );
document.write( ", where h represents the height and d represents the horizontal <BR>\n" );
document.write( "distance both measured in meters. <BR>\n" );
document.write( "a. What is the width of the arch at its base? <BR>\n" );
document.write( "b. What is the maximum height of the arch? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #530340 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=530340\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)84<BR>\n" );
document.write( "b)max = 7497/100 at d = 42 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );