Refer to the weighted voting system 
and the Banzhaf definition of power. (The four players are P1, P2, P3, and P4.)What is the weight of the coalition {P2, P3, P4}?
A. 12
B. 14
C. 8
D. 13
E. none of these
Answer: D
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Identify the pair of lines as appearing to be parallel, perpendicular, or intersecting.
A. Parallel B. Intersecting C. Perpendicular
Factor completely. If unfactorable, indicate that the polynomial is prime.49k3m + 42k2m2 + 9km3
A. km(7k + 3m)(7k - 3m) B. km(7k + 3m)2 C. km(7k - 3m)2 D. prime
Use a graphing calculator to graph the function using the given viewing window. Use the graph to decide if the function is one-to-one. If the function is one-to-one, give the equation of the inverse function.f(x) = x3 - 3x2 - x + 3; [-2, 4] by [-20, 20]
A. one-to-one; f-1(x) = 
- x
B. one-to-one; f-1(x) = 
C. one-to-one; f-1(x) = 
D. not one-to-one
Tell whether the expression is a polynomial. If it is, give its degree.
+ 1
A. Polynomial, degree 4 B. Polynomial, degree -1 C. Polynomial, degree 0 D. Not a Polynomial