Solve the problem.Determine whether the ordered triple (7, 2, -5) is a solution of the system of equations.3x - 8y + z = 02x + 4y - 3z = 37-x + 2y - z = 2
A. Yes
B. No
Answer: A
Mathematics
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Solve the problem.Suppose c(x) = x3 - 22x2 + 10,000x is the cost of manufacturing x items. Find a production level that will minimize the average cost of making x items.
A. 10 items B. 13 items C. 12 items D. 11 items
Mathematics
Simplify.[2(x - 4) - 6] + [7(x - 1) + 7]
A. 9x - 6 B. 2x - 21 C. 9x - 10 D. 9x - 14
Mathematics
Find all rational zeros and factor f(x).f(x) = 10x3 + 53x2 + 14x - 5
A. - 2, 5, -5; f(x) = (2x + 1)(5x - 1)(x + 5)
B. - 
, 1, -5; f(x) = (10x + 1)(x - 1)(x + 5)
C. - 
, 
, -5; f(x) = (2x + 1)(5x - 1)(x + 5)
D. - 2, 5, -5; f(x) = (x + 2)(x - 5)(x + 5)
Mathematics
Perform a rotation of axes to eliminate the xy-term, and sketch the graph of the conic defined by the function
below.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
?
Mathematics