Find the common ratio for the geometric sequence.2, 6, 18, 54, 162, . . .

A. r = 2
B. r = 6
C. r =
D. r = 3

Answer: D

Mathematics

Find the potential function f for the field F.F = (ey2 - sin x)i + 2xyey2j + k

A. f(x, y, z) = cos x + xey2 + z + C B. f(x, y, z) = cos x + ey2 + z + C C. f(x, y, z) = cos x + xzey2 + C D. f(x, y, z) = cos x + ey2(x + z) + C

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Mathematics

Find the reference angle for the given angle.-12°

A. 168° B. 102° C. 12° D. 78°

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Mathematics

Simplify the radical expression by factoring out the largest perfect nth power. Assume that all variables are positive.-

A. 4k³q⁴
B. -4k³q⁴
C. -4k³q⁴
D. 4k⁷q⁸

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Mathematics

Find the angle ? between the given vectors to the nearest tenth of a degree. ? ?

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

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Mathematics