Two highways intersect at a right angle. An  car A, moves along one of the highways, approaching the intersection at 80 km / h, while another car B, moving along the other highway, approaches the intersection a 96 km / h. At what rate is the distance between vehicles varying, at the moment when the cars A and B are, respectively, 5 and 6 kilometers from the intersection?

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Two highways intersect at a right angle. An  car A, moves along one of the highways, approaching the intersection at 80 km / h, while another car B, moving along the other highway, approaches the intersection a 96 km / h. At what rate is the distance between vehicles varying, at the moment when the cars A and B are, respectively, 5 and 6 kilometers from the intersection?

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