If the sequence is arithmetic, find the common difference. If the sequence is not arithmetic, say so.5, 9, 13, 17, . . .

A. 4
B. -4
C. 12
D. Not arithmetic

Answer: A

Mathematics

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A. [-7, 3] ? (4, ?), or 
B. (-?, -7] ? [3, 4), or 
C. [3, 4), or 
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A.

B.

C.

D.

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Solve the equation.Solve cos ? = 1 for ?, where 0° ? ? ? 90°.

A. 30° B. 60° C. 90° D. 0°

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Complete.38 t =  kg

A. 3800 B. 0.38 C. 38,000 D. 0.038

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