Simplify.

A. 12
B. not a real number
C. 6
D. -6


Answer: B

Mathematics

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Find the volume of the solid generated by revolving the region about the given line.The region in the second quadrant bounded by the curve y = 9 - x2, by the x-axis, and by the y-axis, about the line x = 1.

A. ?
B. ?
C. ?
D. ?

Mathematics

Substitute the given values into the formula and then evaluate to find the unknown quantity. Label units in your answer. If the answer is not exact, round your answer to the nearest hundredth.d = rt; t = 9, d = 54

A. 0.2 B. 6 C. 45 D. 63

Mathematics

Multiply the monomials.2x7 ? 9x8

A. 36x15 B. 11x15 C. 18x56 D. 18x15

Mathematics

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

A.
B.
C.
D.

Mathematics