Graph the ellipse. 5x2 + 2y2  + 40x - 16y + 102 = 0

A.

B.


C.


D.


Answer: C

Mathematics

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Provide an appropriate response.True or false? The statement cos(cos-1 x) = x for all real numbers in the interval -? ? x ? ?.

A. True B. False

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Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the leading coefficient a of x2 should be positive or negative.

A. linear; positive B. quadratic; positive C. linear; negative D. quadratic; negative

Mathematics

Find the focus and directrix of the parabola.y2 - 24x = 0

A. F: (0, 6); D: y = -6 B. F: (6, 0); D: y = -6 C. F: (6, 0); D: x = -6 D. F: (6, 0); D: x = 6

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Provide an appropriate response.Can an event E for a sample space S contain an outcome that is not in S?

A. No B. Yes

Mathematics