Find the square root of the positive variables.
A. |w14|
B. -w14
C. w26
D. w14
Answer: A
Mathematics
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Find the length and direction (when defined) of u × v.u = 4i + 2j + 8k, v = -i - 2j - 2k
A. 180; 
i + 
j + 
k
B. 180; 
i + 
k
C. 6
; 
i + 
k
D. 6
; 
i - 
k
Mathematics
Solve or simplify, whichever is appropriate.
- 1 + 
A. -4x - 6
B. 
C. {2}
D. 
Mathematics
Solve. Give your answer as a mixed number if appropriate.
= 
A. 99
B. 2
C. 33
D. 
Mathematics
Write the augmented matrix for the system. Do not solve the system. 8x + 9y = 42 5y = 10
A. 
B. 
C. 
D. 
Mathematics