Multiply, then simplify the product. If variables are present, assume they are positive.(2
+ 
)(2
- 
)
A. 4x - 2
- y
B. 4x - y
C. 4x2 - y2
D. 4x + y
Answer: B
Mathematics
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Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Scheduling this project with two processors results in a finishing time shorter than 22 hours using the priority list
A. C, F, E, B, A, D. B. C, F, A, B, D, E. C. C, D, B, E, A, F. D. C, B, A, F, E, D. E. none of these
Mathematics
Evaluate the sum.
A. 131 B. 135 C. 119 D. 123
Mathematics
Solve for x.-0.7x + 1.15 = -0.4x + 2.95
A. -6 B. -54.545 C. -16.364 D. 6
Mathematics
Find the midpoint of the line segment joining the points A and B.A = (a, 5); B = (0, 9)
A. 
B. 
C. (a, 14)
D. 
Mathematics