Electrical energy use. The rate at which electrical energy is used by the Ortiz family
Chapter 4, Problem 41(choose chapter or problem)
Electrical energy use. The rate at which electrical energy is used by the Ortiz family, in kilowatt-hours (kW-h) per day, is given by where t is time, in hours. That is, t is in the interval a) How many kilowatt-hours does the family use in the first T hours of a day ? b) How many kilowatt-hours does the family use in the first 4 hours of the day?
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