Perform the matrix operation.Let C =
. Find 
C.
A. 
B. 
C. 
D. 
Answer: A
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Refer to the weighted voting system 
and the Banzhaf definition of power. (The four players are P1, P2, P3, and P4.)Which players in the coalition {P1, P3, P4} are critical?
A. P1 only B. None of the players C. All three players D. P1 and P3 only E. none of these
Perform the indicated operation.
- 
A. 
B. - 
C. 
D. 0
Translate the problem to a system of equations, then solve using Cramer's Rule.Jerry has 3 pieces of string. The total length is 82 inches. The sum of the two longer pieces is 70. The middle piece is twice as long as the shortest piece. What are the lengths of the 3 pieces?
A. 6, 12, and 64 inches B. 12, 24, and 46 inches C. 12, 46, and 56 inches D. No solution
Find the standard form of the equation of the parabola with the given characteristics.
?
Vertex: 
; directrix: 
?
A. 
B. 
C. 
D. 
E. 