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chris215
 one year ago
An airplane leaves an airport and flies due west 150 miles and then 170 miles in the direction S 49.17°W. How far is the plane from the airport (round to the nearest mile)?
chris215
 one year ago
An airplane leaves an airport and flies due west 150 miles and then 170 miles in the direction S 49.17°W. How far is the plane from the airport (round to the nearest mile)?

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chris215
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434130266939:dw

chris215
 one year ago
Best ResponseYou've already chosen the best response.0i know that 90 + 49.17 = 139.17

chris215
 one year ago
Best ResponseYou've already chosen the best response.0now do I use c^2=a^2+b^2?

chris215
 one year ago
Best ResponseYou've already chosen the best response.0yeah is that all i need to do?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434142811182:dw

chris215
 one year ago
Best ResponseYou've already chosen the best response.0= 150^2 + 170^2  2(150)(170cos)(139.17) = 226 miles

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0angle as i have shown in the figure angle is (18049.17)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\cos (18049.17)=\cos 49.17\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[ \cos 49.17=\frac{ 150^2+170^2OB^2 }{ 2*150*170 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[5100 *(\cos 49.17)=22500+28900OB^2\]
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