Provide an appropriate response.What must be true of a real number a if 
and - 
represent the same number?
A. a must be negative
B. a can be any real number
C. a must be equal to zero
D. a must be positive
Answer: B
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Find projv u.v = 3j, u = 4i + 3k
A. 0
B. 
j
C. 
i + 
j
D. 
i + 
j + 
k
Determine the number of solutions of the system. State whether the system is consistent or inconsistent. For a system that is consistent, state whether the equations are dependent or independent. State the solution of the system.
A. no solution; inconsistent B. one solution; consistent; independent; (3, -1) C. one solution; consistent; independent; (-3, 1) D. one solution; consistent; independent; (-3, -1)
Find the center (h, k) and radius r of the circle with the given equation. 4x2 + 4y2 - 12x + 16y - 5 = 0
A. (h, k) = (- 
, 2); r = 
B. (h, k) = (
, -2); r = 
C. (h, k) = (- 
, 2); r= 
D. (h, k) = (
, -2); r = 
Solve the problem.Given f(x) = x2 + 5x + 1, find f(3).
A. 25 B. -5 C. -7 D. 23