Find the domain of the rational expression.

A. {x|x is a real number and x ? 1 and x ? 2}
B. {x|x is a real number and x ? 1}
C. {x|x is a real number}
D. {x|x is a real number and x ? 2}

Answer: C

Mathematics

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Perform the indicated operations and simplify the result. Leave the answer in factored form. - 

A. 0
B. 8x
C.
D.

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Mathematics

Use the Binomial Theorem to expand the binomial.( + )4

A. x2 + 4x1/2 + 18x + 12x1/2 + 81
B. x2 + 9
C. x2 + 2x3/2 + 9x + 6x1/2 + 9
D. x2 + 4x3/2 + 18x + 12x1/2 + 9

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Mathematics

Solve the system of equations.  x + y + z = 7  x - y + 2z = 75x + y + z = 11

A. (1, 4, 2) B. (1, 2, 4) C. (4, 1, 2) D. (4, 2, 1)

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Mathematics

Solve. x + 9 = 6

A) x = 3 B) x = -6 C) x = 9 D) x = -3 E) x = 6

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Mathematics