Solve the system using determinants.-4x - 9y - z = -93 x + 5y - 5z = 27-6x + y + z = 1

A. (2, -9, -4)
B. (9, 4, 9)
C. (2, 9, 4)
D. (3, 7, 4)


Answer: C

Mathematics

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A.
B.
C. (0, ?)
D. (-1?)

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Solve the problem. Simplify the fraction, if possible.In a art class containing 58 students, there are 8 freshmen, 11 sophomores, 6 juniors, and the rest are seniors. What fraction of the class is seniors?

A.
B.
C.
D.

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Write an equation for the parabola with vertex at the origin.Focus (5, 0)

A. x2 = 20y B. y2 = 20x C. y2 = 5x D. x2 = 5y

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Round the whole number to the given place.467,495 to the nearest hundred

A. 467,000 B. 468,000 C. 467,500 D. 467,400

Mathematics