Solve the system of equations by elimination.
A. x = 0, y = 0; (0, 0)
B. x = 0, y = 1; (0, 1)
C. x = 1, y = 0; (1, 0)
D. x = 1, y = 1; (1, 1)
Answer: B
Mathematics
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Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iz about the z-axis, where r(t) = (6 sin 2t)i + (6 cos 2t)j + e3tk, 0 ? t ? 1; 
A. Iz = 4(e6 - 1)
B. Iz = 
C. Iz = 
D. Iz = 
[(144 + 9e6)3/2 - (144 + 9)3/2 ]
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Divide.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
- 
i
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Refer to the weighted voting system 
and the Shapley-Shubik definition of power. (The three players are P1, P2, and P3.)Which player in the sequential coalition 
is pivotal?
A. P2 B. P3 C. P1 D. All three players E. none of these
Mathematics
Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 
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