Question: 4.1 A rectangular box has sides of length x, y and z mm. Sides x and z are expanding at rates of 3mm/s and

4.1 A rectangular box has sides of length x, y and z

4.1 A rectangular box has sides of length x, y and z mm. Sides x and z are expanding at rates of 3mm/s and 5mm/s respectively and side y is contracting at a rate of 2mm/s. Determine the rate of change of volume when x is 5mm, y is 6mm and z is 7mm. (5)

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