document.write( "Question 388061: A plane flies 500 kilometers with a bearing of N 44 degrees W from B to C. The plane then flies 720 KM from C to A. Find the bearing of the flight from C to A.
\n" ); document.write( "Here is a picture of the diagram\r
\n" ); document.write( "\n" ); document.write( "http://i763.photobucket.com/albums/xx275/trinhkieu888/9-1.jpg\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "thanks for the help!
\n" ); document.write( "

Algebra.Com's Answer #274387 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Convert both displacements to x,y coordinates.
\n" ); document.write( "Positive x is East.
\n" ); document.write( "Positive y is North.
\n" ); document.write( "Angle is measured CCW from x-axis.
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"D%5BBC%5D\"=(\"500%2Acos%2890%2B44%29\",\"500%2Asin%2890%2B44%29\")
\n" ); document.write( "\"D%5BCA%5D\"=(\"720%2Acos%28180%2Bbeta%29\",\"720%2Asin%28180%2Bbeta%29\")
\n" ); document.write( "where
\n" ); document.write( "\"720%2Asin%28beta%29=500%2Asin%2846%29\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"720%2Asin%28beta%29=500%2Asin%2846%29\"
\n" ); document.write( "\"sin%28beta%29=%28500%2F720%29%2Asin%2846%29\"
\n" ); document.write( "\"sin%28beta%29=0.4995\"
\n" ); document.write( "\"beta=30\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"D%5BBC%5D\"=(\"500%2Acos%28134%29\",\"500%2Asin%28134%29\")
\n" ); document.write( "\"D%5BBC%5D\"=(\"-347.3\",\"359.7\")
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"D%5BCA%5D\"=(\"720%2Acos%28210%29\",\"720%2Asin%28210%29\")
\n" ); document.write( "\"D%5BCA%5D\"=(\"-623.5\",\"-360\")
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "\"D\"=\"D%5BBC%5D%2BD%5BCA%5D\"
\n" ); document.write( "\"D\"=(\"-347-623\",\"360-360\")
\n" ); document.write( "\"D\"=(\"-970\",\"0\")
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "The plane is 970 km from the starting point due west.
\n" ); document.write( "
\n" );