document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=252848>Question 252848</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An air traffic control towel at an airport located   in flat dessert terrain, the controller can see to the horizon. The distance d in miles that he can see from a height above ground level h (in feet) is given by the following equation.  How high must the controller be to see 20 miles to the horizon?   Round to the nearest foot.\r<BR>\n" );
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document.write( "D=(the sq root of 1.5h<BR>\n" );
document.write( "I am not getting this problem.  Would someone please help me? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #184938 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=184938\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How high must the controller be to see 20 miles to the horizon? Round to the nearest foot. \r<BR>\n" );
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document.write( "D=(the sq root of 1.5h<BR>\n" );
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document.write( "20 = sqrt(1.5h)<BR>\n" );
document.write( "Square both sides to get:<BR>\n" );
document.write( "1.5h = 400<BR>\n" );
document.write( "h = 266 2/3 ft.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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