document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=906370>Question 906370</A>: <I><SPAN STYLE=\"word-break: break-all;\"> From the top of a lighthouse 139 ft above the surface of the water, the angle of depression of a boat is observed to be 29.4 degrees . Find the horizontal distance from the boat to the lighthouse.\r<BR>\n" );
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document.write( "Work to three significant digits. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #549754 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</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=549754\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=90-29.4=60.6 ALIGN=MIDDLE  ALT=\"C=90-29.4=60.6\"   DISABLED_style= \"max-width:90%; height:auto;\" >degrees and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=BC=139ft ALIGN=MIDDLE  ALT=\"BC=139ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "so,in ABC we have<BR>\n" );
document.write( "                 <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AB%2FBC=tan%28C%29 ALIGN=MIDDLE  ALT=\"AB%2FBC=tan%28C%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "than,<BR>\n" );
document.write( "            <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AB=BC%2Atan%28C%29=139%2A+tan%2860.6%29=139%2A1.28568=178.71ft ALIGN=MIDDLE  ALT=\"AB=BC%2Atan%28C%29=139%2A+tan%2860.6%29=139%2A1.28568=178.71ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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