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3. x, y, and z and the lengths of the legs of a right triangle. z is the hypotenuse. x is increasing at a

3. x, y, and z and the lengths of the legs of a right triangle. z is the hypotenuse. x is increasing at a constant rate of 2 feet per second y is increasing at a constant rate of 3 feet per second At what rate is z increasing at the instant when x = 30 feet and y = 40 feet? (8 points)

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