document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=689585>Question 689585</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sailor on a submarine uses a periscope to view the surface of the ocean.  The periscopes height H9in feet) above the surface and the distance d(in miles) that the sailor can see are related by the formula h=d^2/1.4.  Suppose the periscope is at a height of 3 feet.  To the nearest mile, how far can the sailor see?  Please show me how to do this.  I don't understand it.  Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #426003 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=426003\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A sailor on a submarine uses a periscope to view the surface of the ocean.<BR>\n" );
document.write( " The periscopes height H (in feet) above the surface and the distance d(in miles) that the sailor can see are related by the formula h=d^2/1.4.<BR>\n" );
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document.write( " Suppose the periscope is at a height of 3 feet.<BR>\n" );
document.write( " To the nearest mile, how far can the sailor see?<BR>\n" );
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document.write( "Replace h with 3 and find d, write the equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5E2%2F1.4 ALIGN=MIDDLE  ALT=\"d%5E2%2F1.4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 3<BR>\n" );
document.write( "multiply both sides by 1.4<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5E2 ALIGN=MIDDLE  ALT=\"d%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1.4(3)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5E2 ALIGN=MIDDLE  ALT=\"d%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4.2<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%284.2%29 ALIGN=MIDDLE  ALT=\"sqrt%284.2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = 2.05 miles<BR>\n" );
document.write( " </SPAN>\n" );
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