Simplify, where possible.21m - 8 - 4m - 5

A. 17m - 3
B. -17m - 13
C. 17m - 8n - 5
D. 17m - 13

Answer: D

Mathematics

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Evaluate the integral. 

A. - y4 e-7y + C
B. - e-7y + C
C. -e-7y + C
D. e-7y + C

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Perform the indicated operation.3(4x2 + 2x - 7) - 4(2x2 - 5x + 3)

A. 4x2 - 3x - 4 B. 4x2 + 26x - 33 C. 4x2 + 26x - 9 D. 4x2 - 14x - 33

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Assume you have a graph with vertex set V = {A, B, C, D, E} and edge set E = {AB, AE, BD, BE, CD, and DD}.The degree of vertex E is

A. 3. B. 1. C. 0. D. 2. E. none of these

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Mathematics

Use the given triangles to evaluate the expression. Rationalize all denominators. cot 

A.
B. 1
C.
D.

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Mathematics