The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x = -3

A. r sin ? = 3
B. r cos ? = -3
C. r cos ? = 3
D. r sin ? = -3


Answer: B

Mathematics

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A. 14,400,000 kg B. 14.4 kg C. 144 kg D. 14,400 kg

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What will be an ideal response?

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Find functions f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = (-4x + 18)8

A. f(x) = x8, g(x) = -4x + 18 B. f(x) = (-4x)8, g(x) = 18 C. f(x) = -4x + 18, g(x) = x8 D. f(x) = -4x8, g(x) = x + 18

Mathematics