Simplify. Assume that variables represent positive real numbers.

A. y6
B. x3 y3
C. x y3
D. x y6


Answer: C

Mathematics

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Solve.The equation ?2 = tan-1 (?C/G) gives the phase angle of impedance in the parallel portion of a distributed constant circuit. Find ?2 if , C = 0.09 ?F/km, and 

A. 85.9° B. 1.5° C. 88.5° D. 89.4°

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Provide an appropriate response.How many square roots does any negative number have?

Fill in the blank(s) with the appropriate word(s).

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Solve the equation.-27 = 20 + c

A. c = -7 B. c = 47 C. c = -47 D. c = 7

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Find the cube root of the number. Approximate the answer to the nearest hundredth whenever appropriate.27x9

A. 27x6 B. 3x3 C. 27x3 D. 3x6

Mathematics