Express the given expression in simplest form with only positive exponents.(x-2y4z-2)(x-7y-7z-5)

A. x9y3z7
B.
C.
D.

Answer: B

Mathematics

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Decide whether the ordered pair is a solution of the given system.

A. No B. Yes

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Solve for x, in radians, so that x is within the indicated interval. Find the answer to three decimal places. 7 cos2 x + 4 cos x = 0, [0, ?]

A. 1.571, 2.179 B. 0.963, 1.571 C. -1.571, 0.963 D. 0, 2.179

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Graph the irrational number on the number line.

A.


B.

C.

D.

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