Solve the polynomial inequality.(x + 10)(x2 - 49) > 0
A. (-10, 7)
B. (-?, -7) ? (7, ?)
C. (-?, 7) ? (7, 10)
D. (-10, -7) ? (7, ?)
Answer: D
Mathematics
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A. No x-intercepts, (0, -17)
B. , (0, -17)
C. , (0, 17)
D. No x-intercepts, (0, 17)
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Find the eccentricity e of the ellipse.x2 + 4y2 = 36
A.
B.
C.
D.
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Given the values of x and y, find an equation of variation in which y varies directly as x.y = 230, when x = 90
A. x = 140y B. x = 2.56y C. y = 2.56x D. y = 0.39x
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The given triangles are similar. Find the unknown length n. Be sure to include units in the answer.
A. 32 in. B. 38 in. C. 40 in. D. 50 in.
Mathematics