Find a polar equation for the circle.x2 - 20x + y2 = 0
A. r = 20 cos ?
B. r = -20 sin ?
C. r = -10 cos ?
D. r = 20 sin ?
Answer: A
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Solve the problem.Consider the generic weighted voting system [q : w1, w2, w3, w4, w5]. Suppose that the winning coalitions are exactly those having 3 or more players. Compute the Banzhaf power index of player P1.
A. 
B. 
C. 
D. 0
E. none of these
A system of nonlinear equations is given. Sketch the graph of the equation of the system and then determine the number of real solutions to the system. Do not solve the system.x2 + y2 = 252y + x = 5
A. Two
B. Two
C. One
D. Zero
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.11 + 22 + 33 + ... + 11n = 
What will be an ideal response?
Find a counterexample to show that the following statement is false:
