Find the common difference for the arithmetic sequence.631, 627, 623, 619, . . .

A. -631
B. 631
C. 4
D. -4

Answer: D

Mathematics

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Write as a percent. 0.088

A. 0.0088% B. 0.088% C. 88% D. 8.8%

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Simplify, if possible.

A. - 
B. 6
C. -1
D. -6

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Perform the indicated operations. Give the answer in lowest terms. - 

A. 0 B. 36b C. 6b D. 3a

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Mathematics

Test the equation for symmetry with respect to the given axis, line, or pole.r = 4 cos ?; the polar axis

A. May or may not be symmetric with respect to the polar axis B. Symmetric with respect to the polar axis

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Mathematics