Mathematics, 16.04.2020 04:14, jdbrooks08

An air traffic controller spots two airplanes at the same altitude converging to a point as they fly at right angles to each other. One airplane is 70 miles from the point and has a speed of 280 miles per hour. The other is 240 miles from the point and has a speed of 960 miles per hour. (a) At what rate is the distance between the planes changing?

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An air traffic controller spots two airplanes at the same altitude converging to a point as they fly...