Find the dot product v ? w.v = 3i + j - 2k and w = i + 2j - 2k
A. -9
B. 26
C. 5
D. 9
Answer: D
Mathematics
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Use the figure below to answer the following question(s).
Which of the following [A), B), C), or D)] is not a circuit in the graph?
A. A, C, D, B, A B. C, B, A, B, D, C C. A, D, B, F, F, E, C, A D. C, A, D, C E. All of these are circuits in the graph.
Mathematics
Rewrite the expression without absolute value bars.
A. 15 - 
B. 2
C. -2
D. 
- 15
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
- 
A. 3 - 4
B. 3
- 4
C. 4
- 3
D. 7
Mathematics
Solve the system by the substitution method.x2 + y2 = 21y2 = 2x + 13
A. (2, 
), (-4, 
), (2, -
), (-4, -
)
B. (2, 
), (-3, 
), (2, -
), (-3, -
)
C. (3, 
), (-4, 
), (3, -
), (-4, -
)
D. (2, 3
), (-4, 3
), (2, -3
), (-4, -3
)
Mathematics