Solve the equation.
?

?

A. x = 3
B. x = -5
C. x = -2
D. x = 1
E. x = -4


Answer: C

Mathematics

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Find fx, fy, and fz.f(x, y, z) = xz

A. fx = z; fy = ; fz = x
B. fx = z; fy = - ; fz = x
C. fx = z; fy = ; fz = x
D. fx = z; fy = - ; fz = x

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Use the information below to determine the cardinality of the set. U = {x | x ? N and x ? 12} A = {x | x ? N and 6 < x < 12} B = {x | x ? N and x is even and x < 12}n(A' ? B)

A. 8 B. 12 C. 9 D. 3

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Factor completely. If unfactorable, indicate that the polynomial is prime.x2 + 39x + 40

A. (x + 8)(x - 5) B. (x - 8)(x + 5) C. (x + 40)(x - 1) D. prime

Mathematics

Find the domain of the function.y = 

A. (2, ?) B. all real numbers except -2 C. (-?, 2) D. all real numbers except 2

Mathematics