Use the elimination method by addition to find the solution for the following system.
A. x = 7, y = -4
B. x = 7, y = -5
C. x = -7, y = -5
D. The system is inconsistent.
Answer: D
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A. II, III B. I, III C. III, IV D. II, IV
Find the solution set of the linear system. Identify inconsistent systems and dependent equations. For dependent equations, write your answer as an ordered triple in terms of z.
A. {(2z - 1, z + 2, z)} B. {(-2, -5, -1)} C. {(-5, -1, -2)} D. inconsistent
Solve the problem. Express the answer as a mixed number when appropriate.Find the perimeter of the triangle with sides of length 
feet, 
feet, and 
feet.
A. 
ft
B. 
ft
C. 
ft
D. 
ft
Find the slope of the line satisfying the given conditions.through (-7, -5) and (-1, 8)
A. 
B. - 
C. - 
D. 