Simplify the expression. Write the answer with only positive exponents. All variables are nonzero.(12x4y2)-1(4x3y)2

A. x2
B. x1
C. x2
D. x-1

Answer: C

Mathematics

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A.

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D.

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A. (-?, -2] ? [2, ?) B. (-2, ?) C. (-?, -2) D. (-?, -2) ? (2, ?)

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Write using exponential notation.2 ? 2 ? 2

A. 21 B. 32 C. 3 ? 2 D. 23

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For the given augmented matrix, find a value of k so that the associated linear system is inconsistent.  

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