help with law of cosines!?

  • Thread starter Thread starter John C
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John C

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a plane 810 miles from frankline to centerville with a bearing of 75 degrees(clockwise from north). then it flies 648 miles from Centerville to Rosemont with a bearing of 32 degrees. Find the straight line distance and bearing from rosemont to frankline.

plz help too hard for me to do by myself!
 
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