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ashlyn.r
 2 years ago
Todd's friend Olivia is flying her stunt plane at an elevation of 6.3 km. From the ground, Todd sees the plane moving directly toward him from the west at a 49° angle of elevation. Three minutes later he turns and sees the plane moving away from him to the east at a 65° angle of elevation. How fast is Olivia flying in kilometers per hour?
ashlyn.r
 2 years ago
Todd's friend Olivia is flying her stunt plane at an elevation of 6.3 km. From the ground, Todd sees the plane moving directly toward him from the west at a 49° angle of elevation. Three minutes later he turns and sees the plane moving away from him to the east at a 65° angle of elevation. How fast is Olivia flying in kilometers per hour?

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gianarpt
 2 years ago
Best ResponseYou've already chosen the best response.149 = d1 over 6.3 > d1 = 6.3 tan 49 ≈ 7.25 km

gianarpt
 2 years ago
Best ResponseYou've already chosen the best response.1tan 65 = d2 over 6.3 > d2 = 6.3 tan 65 ≈ 13.5 km

gianarpt
 2 years ago
Best ResponseYou've already chosen the best response.1Speed = Distance over Time ≈ 7.25 + 13.5 over 0.05 ≈ 415 km/hr
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