The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists.
A. infinitely many solutions of the form x = -2 - z, y = -5 - 2z, z = z
B. infinitely many solutions of the form x = -2 + z, y = -5 + 2z, z = z
C. infinitely many solutions of the form x = -2 - z, y = -5 - 2z, z = 0
D. x = -2, y = -5, z = 0
Answer: A
Mathematics
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+ 
? 
A. 
B. 
C. 
D. 
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A. 121.1 B. 33.3 C. 27.8 D. 37.5
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Factor completely, if possible.p2 - 8p + 15
A. (p + 3)(p + 5) B. (p - 3)(p + 5) C. (p - 3)(p - 5) D. (p - 15)(p - 1)
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Simplify the expression.
A. 
B. 17
C. 
D. 73
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