Perform the indicated operation.(-14a3 + 6a2) - (17a3 - 20a2)
A. -31a3 + 26a2
B. -5a5
C. -31a3 - 14a2
D. 3a3 - 14a2
Answer: A
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Solve the system to the nearest 0.1 for each variable by using a graphing calculator.-0.4x + 2.6y = -3.5-3.1x = -3.6y + 1.6
A. x = -2.7; y = -1.6 B. x = -2.4; y = -1.9 C. x = -0.8; y = -1.5 D. x = -2.5; y = -1.7
Add. Simplify the result whenever possible. 
k + 
k
A. 
k
B. 
k2
C. k
D. 1
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Using the decreasing-time algorithm to schedule this project with two processors results in a finishing time of
A. 22 hours. B. 21 hours. C. 24 hours. D. 26 hours. E. none of these
Predict the new location of the point (x, y), when it is translated by A. Compute Y = AX to verify your prediction.A = 
, (x, y) = (-2, 7), and X = 
A. (-51, 23) B. (-7, -8) C. (-8, 0) D. (-9, -1)