Solve the problem.For a certain computer desk, the manufacturing cost C per desk (in dollars) is C = 
where x is the number of desks manufactured.a. Find the average cost per desk when manufacturing 200 desks.b. Find the average cost per desk when manufacturing 1000 desks.
A. a. $65
b. $45
B. a. $425
b. $405
C. a. $375
b. $395
D. a. $450
b. $425
Answer: B
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Solve the problem using matrices.The nutritional content per ounce for three foods is given in the table below.
What combination of these foods can provide exactly 14 grams of fat, 27 grams of protein, and 10 grams of fiber?
A. 3 oz of Food A; 5 oz of Food B; 1 oz of Food C B. 4 oz of Food A; 6 oz of Food B; 2 oz of Food C C. 7 oz of Food A; 7 oz of Food B; 1 oz of Food C D. No possible combination of these foods
Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.
A. x11
B. 
C. 
D. x12
Solve the problem.A simplified economy has only two industries, the electric company and the gas company. Each dollar's worth of the electric company's output requires 0.20 of its own output and 0.4 of the gas company's output. Each dollar's worth of the gas company's output requires 0.50 of its own output and 0.7 of the electric company's output. What should the production of electricity and gas be (in dollars) if there is a $9 million demand for electricity and a $6 million demand for gas?
What will be an ideal response?
Use the Gauss-Jordan method to solve the system of equations. x + 3y + 2z = 11 4y + 9z = -12x + 7y + 11z = -11
A. (0, 3, 1) B. (7, -1, -1) C. (1, 6, -4) D. No solution