At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) ? (0, 0, 0)
B. All (x, y, z) ? (9, 8, -10)
C. All (x, y, z) ? ± (9, 8, -10)
D. All (x, y, z)
Answer: B
Mathematics
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Refer to the weighted voting system 
and the Shapley-Shubik definition of power. (The three players are P1, P2, and P3.)Which player in the sequential coalition 
is pivotal?
A. P2 B. P1 C. P3 D. All three players E. none of these
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Solve the cubic equation using factoring and the quadratic formula.x3 - 8 = 0
A. {2, 1 ± i
}
B. {2, -1 ± i
}
C. {2, -1 ± 
}
D. {2, ±2i}
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Solve the equation.log (5x) = log 4 + log (x + 1)
A. 
B. {- 4}
C. {4}
D. 
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Find an equation for the ellipse described. Graph the equation.Center at (-4, 5); focus at (-8, 5); contains the point (-9, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics