document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154731>Question 1154731</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The higher a lookout tower is built, the farther an observer can see. That distance d (called the horizon distance, measured in miles) is related to the height h of the observer (measured in feet) by the formula <BR>\n" );
document.write( "d = 1.4\r<BR>\n" );
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document.write( "h<BR>\n" );
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document.write( " How tall (in ft) must a lookout tower be to see the edge of the forest, 40 miles away? (Round your answer to the nearest foot.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777205 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=777205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "given:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+1.4h ALIGN=MIDDLE  ALT=\"d+=+1.4h\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=40 ALIGN=MIDDLE  ALT=\"d=40\"   DISABLED_style= \"max-width:90%; height:auto;\" >  miles\r<BR>\n" );
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document.write( "so, \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+1.4h ALIGN=MIDDLE  ALT=\"d+=+1.4h\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=40=+1.4h ALIGN=MIDDLE  ALT=\"40=+1.4h\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=40%2F1.4 ALIGN=MIDDLE  ALT=\"h=40%2F1.4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=28.57 ALIGN=MIDDLE  ALT=\"h=28.57\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=29 ALIGN=MIDDLE  ALT=\"h=29\"   DISABLED_style= \"max-width:90%; height:auto;\" >feet\r<BR>\n" );
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document.write( " </SPAN>\n" );
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