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The formula E = 1000(100 - T) + 580(100 - T)2 is used to approximate the...

The formula E = 1000(100 - T) + 580(100 - T)2 is used to approximate the elevation (in meters) above sea level at which water boils at a temperature of T (in degrees Celsius). Find the rate of change of E with respect to T for a temperature of 60°C.

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