Math 225 Exam 1 & PSY 225 Module 4 Quiz SNHU Correct Questions and Answers 100% A+ Graded

Math 225 Exam 1 & PSY 225 Module 4 Quiz SNHU Correct Questions and Answers 100% A+ Graded elementary row operations - CORRECT ANSWER-1. (Replacement) Replace one row by the sum of itself and a multiple of another row. 2. (Interchange) Interchange two rows. 3. (Scaling) Multiply all entries in a row by a nonzero constant. x1+x2+x3=2 x2+x3=9 0=-1 This set has ______ solutions and is _________ - CORRECT ANSWER-No solutions, is empty consistant system - CORRECT ANSWER-a system of equations or inequalities that has at least one solution. The system is consistent because the system can be reduced to a triangular form that indicates that a solution exists. The solution set of a linear system involving variables X1,...,Xn is a list of numbers (S1,...,S2) that makes each equation in the system a true statement when the values S1,...,S2 are substituted for X1,...,Xn respectively - CORRECT ANSWER-The statement is false. The given description is of a single solution of such a system. The solution set of the system consists of all possible solutions. A rectangular matrix is in echelon form if it has the following properties. - CORRECT ANSWER-1. All nonzero rows are above any rows of all zeros.