Question: 1 . The rectangular box has square base of 1 0 0 by 1 0 0 and height 2 0 0 . When heated its

1.The rectangular box has square base of 100 by 100and height 200.When heated its volume is growing at the rate 30, while the height is shrinking at the rate -2.Find rate of change of the length of the base .

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