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joseph54311
 one year 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)?
joseph54311
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.0isnt it c^2 = a^2 +b^2

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

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

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