document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=132160>Question 132160</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hi! <BR>\n" );
document.write( "my problem is now:  THE DISTANCE BETWEEN THE ROAD OF A BRIDGE AND THE TOP PART OF ITS ARCH IS 3m. IF THE ARCH OF THE BRIDGE IS GIVEN BY THE EQUATION <BR>\n" );
document.write( "h(x)=7x-x^2, FIND THE HEIGHT OF THE BRIDGE. <BR>\n" );
document.write( "thank you!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #96563 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=96563\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> THE DISTANCE BETWEEN THE ROAD OF A BRIDGE AND THE TOP PART OF ITS ARCH IS 3m. IF THE ARCH OF THE BRIDGE IS GIVEN BY THE EQUATION <BR>\n" );
document.write( "h(x)=7x-x^2, FIND THE HEIGHT OF THE BRIDGE.<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Maximum height of the arch occurs at x = -b/2a = -7/(2*-1) = (7/2)<BR>\n" );
document.write( "The height of the arch is f(7/2) = 7(7/2)-(7/2)^2 = 49/2 - 49/4 = 49/4= 12.25m<BR>\n" );
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document.write( "The height of the bridge is 12.25-3 = 9.25 meters<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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