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Please please help! Solve the problem. Round your answer, if appropriate. One airplane is approaching an airport from the north at 216 km/hr. A second

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Please please help!

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Solve the problem. Round your answer, if appropriate. One airplane is approaching an airport from the north at 216 km/hr. A second airplane approaches from the east at 268 km/hr. Find the rate at which the distance between the planes changes when the southbound plane is 36 km away from the airport and the westbound plane is 20 km from the airport. O A. - 160 km/hr O B. - 638 km/hr O C. - 479 km/hr O D. - 319 km/hr

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