Refer to the weighted voting system 
and the Banzhaf definition of power. (The four players are P1, P2, P3 and P4.)The winning coalitions are:
A. all coalitions with P1 in it.
B. {P1, P2}, {P1, P3}, and all coalitions with three or more players.
C. all coalitions with two or more players.
D. all coalitions with three or more players.
E. none of these
Answer: B
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Describe the graph of the polar equation.r2 = 36 rcos ? - 6r sin ? - 9
A. Parabola opening upward with vertex (36, -6) B. Circle with radius 18 and center (18, -3) C. Circle with radius 3 and center (36, -6) D. Parabola opening to the right with vertex (36, -6)
Solve.If an earthquake measured 
on the Richter scale, what was the approximate intensity of the earthquake in terms of I0? The magnitude on the Richter scale of an earthquake of intensity I is 
A. 320,000,000 ? I0 B. 4900 ? I0 C. 250,000,000 ? I0 D. 32,000,000 ? I0
Evaluate.
Use the fundamental identities to find the value of the trigonometric function.Find tan ?, given that sin ? = 
and ? is in quadrant II.
A. - 
B. - 
C. 
D. - 