Solve the problem.A computer manufacturer has three outlet stores that sell its four computer systems. The following table shows the numbers of systems sold by the three stores in July.
The prices of the systems are: $1200 for System 1, $1500 for System 2, $1600 for System 3, and $1700 for System 4. Write the information from the table as a 4 x 3 matrix B. Write a row matrix A for which the entries represent the prices for the systems. If 
find c12. What does this entry of C represent?
A. c12 = 151,000. c12 represents the total sales at Store 1 in July.
B. c12 = 173,000. c12 represents the total sales at Store 2 in July.
C. c12 = 141,000. c12 represents the sales of System 2 at all stores in July.
D. c12 = 161,000. c12 represents the total sales at Store 3 in July.
Answer: B
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Solve the problem.A manufacturer uses raw materials to produce p products each day. Suppose that each delivery of a particular material is $d, whereas the storage of that material is x dollars per unit stored per day. (One unit is the amount required to produce one product). How much should be delivered every x days to minimize the average daily cost in the production cycle between deliveries?
What will be an ideal response?
Find the product.5x8(-12x9 + 4x7 - 10)
A. -60x9 + 20x7 - 50 B. -60x17 + 20x15 - 10 C. -60x17 + 4x7 - 10 D. -60x17 + 20x15 - 50x8
Solve and check.-5.3 = y + 6.4
A. y = 1.1 B. y = -1.1 C. y = -11.7 D. y = 11.7
Use synthetic division to divide f(x) by x - k for the given value of k. Then express f(x) in the form 
for the given value of k.f(x) = 3x4 - 9x3 + 2x2 - 6x; k = 3
A. f(x) = (x + 3)(3x2 + 2x) B. f(x) = (x - 3)(3x3 + x2 - x + 3) + 9 C. f(x) = (x - 3)(3x3 + 2x) D. f(x) = (x + 3)(3x3 + 2x)