Identify the property illustrated by the statement. Assume all variables represent real numbers.
? (a + 2) = 1, if a + 2 ? 0
A. Inverse
B. Closure
C. Distributive
D. Identity
Answer: A
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Graph the system of inequalities.x + 3y > -6y ? -2
A. 
B. 
C. 
D. 
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 two or more players. B. all coalitions with three or more players, one of which is P1. C. all coalitions with three or more players. D. all coalitions with P1 in it. E. none of these
Solve.The ratio of the distances a 7-iron and a 5-iron will drive a golf ball is 5 to 6. If a golfer averages 200 yards with a 7-iron, how far should he average with a 5-iron?
A. 167 yards B. 211 yards C. 189 yards D. 240 yards
Decide whether the graph opens up or opens down.f(x) = (x + 2)2 + 2
A. opens up B. opens down