Find the common difference,d, of the given arithmetic sequence.5, 8, 11, 14, ...

A. -3
B. 9
C. 3

Answer: C

Mathematics

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Shade the solution set to the system of inequalities.x + 2y ? 2x + y ? 0

A.

B.

C.

D.

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Find the requested value.Find f(7) forf(x) = 

A. -5 B. -25 C. undefined D. 5

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Use the given vectors to find the specified scalar.u = -10i - 5j, v = -10i + 5j, w = 3i - 4j; Find u ? (v + w).

A. 65 B. 75 C. 25 D. -10

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Use identities to find the exact value of the trigonometric function.Find tan ? if sec ? =  and  < ? < 2?.

A. 4
B. - 
C. -
D. -4

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Mathematics