Write the mixed number as an improper fraction.7

A.
B.
C.
D.

Answer: C

Mathematics

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For the given function f(x), find f-1(x). State the domain of f-1(x).f(x) = 

A. f-1(x) = , x ? 0
B. f-1(x) = , x ? 0
C. f-1(x) =  - 5, x ? 0
D. f-1(x) = , x ? 0

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Mathematics

Solve the equation.x2 = -25

A. ±i
B. ±
C. ±5i
D. ±5

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Mathematics

Solve the system of equations. If the system has no solution, say that it is inconsistent.

A. x = 7, y = -8; (7, -8)
B. x = 3, y = 8; (3, 8)
C. x = , y = ; 
D. inconsistent

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Mathematics

Find the product. Assume all variable exponents represent whole numbers.(xy - 7)(x2y2 + 2xy + 6)

A. x3y3 + 2x2y2 + 6xy B. x3y3 + 9x2y2 + 20xy + 42 C. x3y3 - 5x2y2 - 8xy - 42 D. 7x3y3 - 14x2y2 - 42xy

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Mathematics