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" );
document.write( "\n" );
document.write( "			 <BR>\n" );
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 #184942 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=184942\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is an air traffic control towel?<BR>\n" );
document.write( "Is that the towel they use to wipe off their sweat after doing these math problems?<BR>\n" );
document.write( "plug 20 into the formula<BR>\n" );
document.write( "D=sqrt(1.5h)<BR>\n" );
document.write( "20=sqrt(1.5h)<BR>\n" );
document.write( "sq both sides<BR>\n" );
document.write( "400=1.5h<BR>\n" );
document.write( "multiply by 10<BR>\n" );
document.write( "4000=15h<BR>\n" );
document.write( "4000/15=h<BR>\n" );
document.write( "800/3=h<BR>\n" );
document.write( "266.67 feet or 267 feet which would be over 26 floors/stories high<BR>\n" );
document.write( "I suspect that you didn't copy the problem correctly.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );