Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary.3x + 2y + z = 42x - 3y - z = 55x + 12y + 5z = 2
A. {(x, -5x - 9, -13x + 22)}
B. {(x, -5x + 9, -13x + 22)}
C. {(x, 5x + 9, -13x + 22)}
D. {(x, 5x - 9, -13x + 22)}
Answer: D
Mathematics
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Determine whether the points A, B, and C form a right triangle.A = (7, 4); B = (15, 4); C = (15, 9)
A. Yes B. No
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Solve the problem.Suppose that f(x) = 4x + 5. What is f(4)? What point is on the graph of f?
A. 261; (4, 256) B. 261; (4, 261) C. 256; (4, 256) D. 256; (5, 256)
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Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.
A. 
B. 
C. 
D. 
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