document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167014>Question 167014</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At a height of h meters you can see V kilometere to the hozizon These number are related by the equation V = 3.5 sqrt(h) A person can see 392 km to the horizon from an airplane window. How high is the airplane? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123027 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=123027\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At a height of h meters you can see V kilometers to the horizon. These numbers are related by the equation V = 3.5 sqrt(h) A person can see 392 km to the horizon from an airplane window. How high is the airplane?<BR>\n" );
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document.write( "Substitute 392 for V in the given equation and find h<BR>\n" );
document.write( "3.5*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28h%29 ALIGN=MIDDLE  ALT=\"sqrt%28h%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 392<BR>\n" );
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document.write( "Divide both sides by 3.5:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28h%29 ALIGN=MIDDLE  ALT=\"sqrt%28h%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=392%2F3.5 ALIGN=MIDDLE  ALT=\"392%2F3.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28h%29 ALIGN=MIDDLE  ALT=\"sqrt%28h%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 112<BR>\n" );
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document.write( "Square both sides:<BR>\n" );
document.write( "h = 112^2<BR>\n" );
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document.write( "h = 12,544 meters<BR>\n" );
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document.write( "Check solution on a calc: enter 3.5*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2812544%29 ALIGN=MIDDLE  ALT=\"sqrt%2812544%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 392 </SPAN>\n" );
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