Factor by grouping.xy + 6x - 2y - 12

A. (x + 6)(y - 2)
B. (y - 6)(x + 2)
C. (x - 6)(y + 2)
D. (y + 6)(x - 2)


Answer: D

Mathematics

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In order to answer the given question, which of the following types of study would be the most appropriate: an experiment without blinding, an experiment with single blinding, an experiment with double blinding, an observational study, or a case-control study?Does the new medication relieve depression?

A. Observational study B. Case-control study C. Experiment with single blinding D. Experiment without blinding E. Experiment with double blinding

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Provide an appropriate response.What does the graph of the equation  look like?

A. A sphere B. A cylinder C. A line D. A plane

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Find the vertex of the parabola.f(x) = x2 - 4x + 11

A. (2, 7) B. (0, 7) C. (0, 11) D. (2, 11)

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Rationalize the denominator. Assume that all variables represent nonnegative numbers and that the denominator is not zero.

A.
B.
C.
D.

Mathematics