Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.

A. 4b2
B. 6b2
C.
D.

Answer: A

Mathematics

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Choose the equation that matches the graph.

A. 16x2 - 9y2 = 144 B. 9x2 + 16y2 = 144 C. 9x2 - 16y2 = 144 D. 16x2 + 9y2 = 144

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Mathematics

Decide if the number is rational or irrational. ?

A. Irrational B. Rational

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Mathematics

Multiply to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.4 ? 3 ? 

A. 2
B. 6
C. 1
D. 2

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Mathematics

Find the value of the expression using the given values.-4x + yx = -5, y = 3

A. -2 B. -17 C. -1 D. 23

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Mathematics