A company manufactures a units of one item and y units of another. The total cost in dollars, C, of producing these two items is approximated by the function C = 6x² + 2xy + 7y² + 900. (a) If the production quota for the total number of items (both types combined) is 132, find the minimum production cost. 9. cost = (b) Estimate the additional production cost or savings if the production quota is raised to 133 or lowered to 131. production cost or savings =

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Q: Part (d) please

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