Determine if the ordered pair satisfies the inequality.x ? y + 4: (5, -1)
A. No
B. Yes
Answer: A
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Find the moment or center of mass of the wire, as indicated.Find the moment about the x-axis of a wire of constant density that lies along the first-quadrant portion of the circle x2 + y2 = 9.
A. 3
B. 
C. 
D. 9
Refer to the weighted voting system 
and the Shapley-Shubik definition of power. (The four players will be called P1, P2, P3, and P4.)Which player in the sequential coalition 
is pivotal?
A. P2 B. P3 C. P4 D. P1 E. none of these
Solve the problem.The amount of a certain radioactive isotope present at time t is given by 
grams, where t is the time in years that the isotope decays. The initial amount present is 400 grams. How many grams remain after 20 years? Round to the nearest hundredth.
A. 234.78 g B. 397.87 g C. 681.48 g D. 379.25 g
Solve the equation.
= 0
A. - 
, 
B. - 
, 
C. - 
, 
D. - 
, 