A matrix is given. 1270 0162 0000 (a) Determine whether the matrix is in row-echelon form. O Yes O No (b) Determine whether the matrix is in reduced row-echelon form. O Yes O No (c) Write the system of equations for which the given matrix is the augmented matrix. (Enter each answer in terms of x, y, and z.) = 0 = 2 = 0

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