Mathematics, 04.12.2020 02:00 babyskitt

The cost C (in dollars) of building a house is related to the number k of carpenters used and the number e of electricians used by† C(k, e) = 15,000 + 50k2 + 60e2. If k = e = 19, compare the effects of increasing k by one unit and of increasing e by one unit.

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