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help please QUESTION 1 a) A block of ice in the shape of a cube originally having a volume 1000 cm3 is melting in such

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QUESTION 1 a) A block of ice in the shape of a cube originally having a volume 1000 cm3 is melting in such a way that the length of each of its edges is decreasing at the rate of 2cmfhr. At what rate is its surface area decreasing at the time its volume is 125 cm3 ?. Assume that the block of ice maintains its cubical shape. (4 marks)

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