Determine the number that will complete the square. Check by multiplying.x2 + 
x + 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the vector projv u.v = 3i - j + 3k, u = 2i + 10j + 11k
A. 
i - 
j + 
k
B. 
i + 
j + 
k
C. 
i - 
j + 
k
D. 
i + 
j + 
k
Mathematics
Simplify the expression. Write the result using positive exponents only.
-3
A. 
B. 64
C. 
D. -64
Mathematics
Find any excluded values.
A. -5, 1, 
B. 5, 1
C. -5, 1
D. 5, 1, 
Mathematics
Use the graph to complete the identity.
= ? 
A. csc x B. cos x C. sin x D. sec x
Mathematics