Rationalize the denominator. Assume that all variables represent positive real numbers.

A. 5
B.
C. 5
D.

Answer: B

Mathematics

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Add or subtract as indicated. Simplify the result if possible. If an answer is an improper fraction, write it as a mixed number. - 

A.
B.
C.
D.

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Mathematics

If the function is one-to-one, find its inverse. If not, write "not one-to-one."{(-7, -7), (-6, -7), (-5, -3), (-4, -9)}

A. {(-7, -7), (-6, -3), (-5, -9)} B. not one-to-one C. {(-7, -9), (-7, -3), (-5, -6)} D. {(-7, -7), (-9, -3), (-5, -6)}

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Write a monomial that represents the described quantity.The number of seats in a theater that has r rows with exactly s seats in each row

A. rs
B. rs
C. 2r + 2s
D. r + s

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Solve the equation.7x - 30 = 3x + 8

A. 0.105 B. 10.5 C. 9.5 D. 1.053

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Mathematics