For the given inequality, state the inequality that results when the specified operation is performed on both members.1 < 121Take square roots.
A. -1 > -121
B. 1 < 11
C. 1 < 121
D. -1 > -11
Answer: B
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Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Consider the following timeline using three processors.
A. This timeline is an illegal schedule because task E was started before task C was completed. B. This timeline is an optimal schedule for three processors. C. This timeline is an illegal schedule because task F was started before task E was completed. D. This timeline is not an optimal schedule because the project can be scheduled with a finishing time of 11 hours. E. none of these
Solve the following system by any appropriate method. If there is no real number solution, so state.3x2 - 4y2 = -375x2 + 2y2 = 77
A. (3, -4), (3, 4) B. (3, 4), (4, 3), (-3, -4), (-4, -3) C. (3, 4), (3, -4), (-3, 4), (-3, -4) D. (-3, -4), (-4, -3)
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Identify the number as prime, composite, or neither.127
A. Prime B. Composite C. Neither