document.write( "Question 1113306: A plane flies 760 km due north then flies on a
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document.write( "bearing of 220° until it is due west of its original
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document.write( "position. Find the distance (to the nearest km)
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document.write( "the plane is from its original position.\r
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document.write( "Thank you \n" );
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Algebra.Com's Answer #728314 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! North direction leg 760 km\r \n" ); document.write( "\n" ); document.write( "Westward direction leg, x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The two legs meet at 90 degree angle.\r \n" ); document.write( "\n" ); document.write( "Angle at the north: 50 degrees \n" ); document.write( "Angle at the west: 40 degrees.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I used the 220 degree bearing according to 0 degrees being directly Eastward, so as to be the same direction as used on the Unit Circle. East, like the positive direction on the x-axis. This way 180 degrees is all the way West, and 220 degrees is 220-180=40 degrees downward from West. \n" ); document.write( " |