Solve the equation.2(x + 2) = (2x + 4)

A. ?
B. {all real numbers}
C. {8}
D. {0}


Answer: B

Mathematics

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Given the graph of f, find any values of x at which f ' is not defined.

A. x = 2 B. x = -2, 0, 2 C. x = -2, 2 D. x = 0

Mathematics

The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error . Round your answer, if appropriate.f(x) = x + x2, x0 = 4, dx = 0.02

A. 0.0008 B. 0.03608 C. 0.07216 D. 0.0004

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Classify the equation as a contradiction, an identity, or a conditional equation.12k + 89 = 3(4k + 29)

A. Identity B. Conditional C. Contradiction

Mathematics

Write an equation of the line described.Through (6, 2), perpendicular to 7x - 6y = 48

A. y = - x - 
B. y = - x + 
C. y = x + 
D. y = x - 

Mathematics