document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=582008>Question 582008</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is a Pre-Calculus problem involving vectors.<BR>\n" );
document.write( "A sailboat is headed east at 18 mph relative to the water. A current is moving the water south at 3 mph.<BR>\n" );
document.write( "a. What is the angle of the path of the sailboat?<BR>\n" );
document.write( "b. What is the sailboat's speed with respect to the ocean floor? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #371926 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=371926\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A sailboat is headed east at 18 mph relative to the water. A current is moving the water south at 3 mph.<BR>\n" );
document.write( "a. What is the angle of the path of the sailboat?<BR>\n" );
document.write( "tan(A) = 3/18<BR>\n" );
document.write( "Angle =~ 9.46 degs<BR>\n" );
document.write( "--> a path of 99.46 degs (090 or 90 degs is East)<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "b. What is the sailboat's speed with respect to the ocean floor?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2+=+18%5E2+%2B+3%5E2+=+333 ALIGN=MIDDLE  ALT=\"r%5E2+=+18%5E2+%2B+3%5E2+=+333\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r =~ 18.25 mi/hr </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );