Electrical usage costs The monthly charge in dollars for x kilowatt-hours (kWh) of electricity used by a residential consumer of Excelsior Electric Membership Corporation from November through June is given by the function
(a) What is the monthly charge if 1100 kWh of electricity is consumed in a month?
(b) Find
(c) Is C continuous at x = 100 and at x = 500?
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Mathematical Applications for the Management, Life, and Social Sciences
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