Simplify the radical. Indicate if the radical is not a real number. Assume that x represents a positive real number.

A. 22
B. 242
C. -22
D. Not a real number


Answer: A

Mathematics

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Evaluate the integral.dx

A. 43/2 + C
B. 3/2 + C
C. - -1/2 + C
D. 3/2 + C

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Find the special products using patterns.(2x + 7y)2

A. 2x2 + 49y2 B. 2x2 + 28xy + 49y2 C. 4x2 + 28xy + 49y2 D. 4x2 + 49y2

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Solve the problem.If you measure the circumference of a circle to be 10 inches, estimate the length of its radius. Use ? on your calculator and round to the nearest hundredth.

A. 3.18 in. B. 2.59 in. C. 1.59 in. D. 1.67 in.

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Evaluate the expression x + y / 2 for the given values of x, y, and z. x = 6/9, y = - ¼, z = 2/7

A) -1 11/24 B) - 5/42 C) 1 11/24 D) 5/42 E) 3 5/24

Mathematics