4Select the correct answer.If the row echelon form of a system of three linear equations in three variables Is given by this matrix, which phrase describes the solutions?A.one solution at the point (1,3,7)В.Infinite number of solutionsOC.no solutionsOD.one solution at the polnt (1,3,0)ResetNextAll rights reserved.137100100 Drag each tile to the correct box.Consider matrix A.[2 31A = 0 -4 51 5-7.What sequence of row operations will change matrix A to this matrix?[30 42-5 11[2 3 1R2 + R3 replaces R3.Switch R1 and R3.R1 + 2R2 replaces R2.rights reserved.

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4 Select the correct answer. If the row echelon form of a system of three linear equations In three variables Is given by this matrix, which phrase describes the solutie OA one solution at the point (1,3,7) O B. Infinite number of solutions Oc. no solutions OD. one solution at the point (1,3,0) Reset Next 100