



 
Laura, Despite the bogus precision of the bearings (no helmsperson can hold a course to a hundredth of a degree: one degree is doing well. ) I'm assuming that the curvature of the earth may be ignored. (And what sort of landlubber measures vessel speed in mph rather than knots? Aaaarh, lass, knots were good enough for Blackbeard and Anne Bonny, and they're good enough for the Dread Pirate Roberts.) Now find the angular difference between the two courses. You may be able to do this in your head, if you understand the notation. [The correct answer is tidy.] Hints if needed: Now find the distances (velocity * time) and draw a diagram. Use trig to finish. Good Hunting!  


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