Solve the problem.If v = 9i + 3j, what is ?

A. 48 
B. 24 
C. -24 
D. 48i 

Answer: B

Mathematics

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Find the derivative.y = 18x sin 19x

A. 342x cos 19x + 18 sin 19x B. 342x cos 19x + sin 19x C. 342x cos 18x + 18 sin 19x D. -342x cos 19x + 18 sin 19x

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Solve the problem.Determine k so that the line  is parallel to the line 

A. - 
B. - 
C.
D. - 

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Mathematics

Use a calculator to approximate the square root to the nearest thousandth.

A. 8.059 B. 65.000 C. 8.067 D. 8.062

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Mathematics

Find the indicated sum. + 1 +  + . . . + 9

A.
B.
C. 66
D.

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Mathematics