Question: Each of Exercises 61 through 68 involves either the chain rule for partial derivatives or the incremental approximation formula for functions of two variables. Using

Each of Exercises 61 through 68 involves either the chain rule for partial derivatives or the incremental approximation formula for functions of two variables.

Using x hours of skilled labor and y hours of unskilled labor, a manufacturer can produce Q(x, y) = 10xy^1/2 units. Currently 30 hours of skilled labor and 36 hours of unskilled labor are being used. Suppose the manufacturer reduces the skilled labor level by 3 hours and increases the unskilled labor level by 5 hours. Use calculus to determine the approximate effect of these changes on production.

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