Use the given matrices to compute the given expression.Let A = . Find 3A.

A.

B.

C.

D.

Answer: C

Mathematics

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Multiply and simplify. Assume that all variables represent positive real numbers. ? 

A. 3xy2
B. 9y2
C. 9xy4
D. 9xy2

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Compute the product.

A.
B.
C.
D.

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Write interval notation.{ x ? x > 1 }

A. (-?, 1) B. (1, ?) C. [1, ?) D. (-?, 1]

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Solve and give interval notation for the solution set. Then graph the solution set.4 < 2x + 4 ? 12

A. [0, 4)

B. [0, 4]

C. (0, 4]

D. (0, 4)

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