Find the greatest common factor of the following.21s3t7, 7s2t9, and 35s4t
A. s2t
B. 35s4t9
C. 7s2t7
D. 7s2t
Answer: D
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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 
and 
Find the Banzhaf power distribution.
A. P1: 
, P2: 
, P3: 
, P4: 
, P5: 
B. P1: 
, P2: 
, P3: 
, P4: 
, P5: 
C. P1: 
, P2: 
, P3: 
, P4: 
, P5: 
D. P1: 
, P2: 
, P3: 
, P4: 0, P5: 0
E. none of these
Find the principal square root of the number. Approximate the answer to the nearest hundredth whenever appropriate.(xy)2, xy < 0
A. 2xy B. -xy, xy C. xy D. -xy
Give all solutions of the nonlinear system of equations, including those with nonreal complex components.y = x2 - 14x + 49x + y = 19
A. {(3, 16), (10, 9)} B. {(7, 12)} C. {(3, 22), (10, 9)} D. {(-3, 22), (-10, 29)}
Factor. Check by multiplying.9x + 18
A. 2(x + 9) B. 9(x + 9) C. 9(x + 2) D. 9(x + 18)