document.write( "Question 567880: Two ships leave the same port at the same time along paths that make an angle of 115o with each other. If one ship travels at 22 knots (nautical miles per hour) and the other at 18 knots, how many nautical miles apart are the ships after two hours? \n" ); document.write( "
Algebra.Com's Answer #366789 by lwsshak3(11628)\"\" \"About 
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Two ships leave the same port at the same time along paths that make an angle of 115o with each other. If one ship travels at 22 knots (nautical miles per hour) and the other at 18 knots, how many nautical miles apart are the ships after two hours?
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\n" ); document.write( "After two hours:
\n" ); document.write( "one ship travels 22*2=44 nm
\n" ); document.write( "other ship travels 18*2=36 nm
\n" ); document.write( "You now have a triangle with two sides, 44 and 36 and an included angle of 115º
\n" ); document.write( "let c=third side
\n" ); document.write( "Using Law of cosines:c^2= a^2+b^2-2abcos C
\n" ); document.write( "c^2= a^2+b^2-2abcos C
\n" ); document.write( "c^2= 44^2+36^2-2*44*36*cos 115º
\n" ); document.write( "c^2≈4571
\n" ); document.write( "c=√(4571)≈68
\n" ); document.write( "..
\n" ); document.write( "ans:
\n" ); document.write( "Nautical miles apart are the ships after two hours=68 \n" ); document.write( "
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