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anonymous
 3 years ago
an airplane leaves an airport and flies due west 170 miles and then 180 miles in the direction 190˚10'. assuming the earth is flat, how far is the plane from the airport at this time(to the nearest mile)?
anonymous
 3 years ago
an airplane leaves an airport and flies due west 170 miles and then 180 miles in the direction 190˚10'. assuming the earth is flat, how far is the plane from the airport at this time(to the nearest mile)?

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TheRealMeeeee
 3 years ago
Best ResponseYou've already chosen the best response.0isnt it c^2 = a^2 +b^2

TheRealMeeeee
 3 years ago
Best ResponseYou've already chosen the best response.0here, the angle C is 39.17+90, and u have a, b, only c left to find, which is the answer

TheRealMeeeee
 3 years ago
Best ResponseYou've already chosen the best response.0replace them in a2 + b2  2ab cos(C) = c2 to find c

TheRealMeeeee
 3 years ago
Best ResponseYou've already chosen the best response.0120 mi150 mi39.17

dumbcow
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1386014079832:dw use Law of cosines to find "x"
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