Find the slope of the line.

A.
B. - 
C.
D. - 

Answer: A

Mathematics

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Find the function represented by the power series. 

A. - 
B. - 
C.
D.

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Solve the problem.How many spanning trees does the following network have?

A. 18 B. 10 C. 17 D. 19 E. none of these

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Find the amplitude and range of the function.y = 2 cos x

A. ; [-2, 2]
B. 2; [-2, 2]
C. ?; [-2, 2]
D. -2; [-2, 2]

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Use the product-to-sum identities to rewrite the expression as the sum or difference of two functions.cos 5? cos 4?

A. [cos 9? - cos ?]
B. [cos ? + cos 9?]
C. cos2 20?2
D. [cos 9? - sin ?]

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Mathematics