Plot the number in the complex plane.2i

A.
 
B.

C.
 
D.
 

Answer: D

Mathematics

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Determine which ordered pair is a solution of the system.



A) (6, –4)
B) (–7, 1)
C) (–7,–3)
D) (–4, –6)
E) (6, 4)

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Mathematics

Solve the problem.Find an equation of the line containing the centers of the two circles x2 + y2 + 8x - 2y + 16 = 0and x2 + y2 + 2x + 6y + 6 = 0

A. -4x + 3y + 13 = 0 B. -2x + 5y + 13 = 0 C. 4x - 3y + 13 = 0 D. 4x + 3y + 13 = 0

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Mathematics

Solve the equation.(2x + 1)(5x - 3) = 0

A. , -  
B. 2, 
C. - ,  
D. 1, 2

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Mathematics

Use a ratio identity to find tan ? if ?   and . ? 

A. tan ? = 5 B. tan ? = 09 C. tan ? = 4 D. tan ? = 08 E. tan ? = 3

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Mathematics