Mathematics, 18.07.2020 21:01 maxwellstrauss
Suppose the coefficient matrix of a linear system of four equations in four variables has a pivot in each column. Explain why the system has a unique solution.
D. The system has at least one free variable.
E. The system is consistent.
F. The system has no free variables.
Use the given assumption that the coefficient matrix of the linear system of four equations in four variables has a pivot in each column to determine the dimensions of the coefficient matrix. The coefficient matrix has four rows and four columns. Let the coefficient matrix be in reduced echelon form with a pivot in each column, since each matrix is equivalent to one and only one reduced echelon matrix. Construct a matrix with the dimensions determined in the previous slop that is in reduced echelon form and has a pivot in each column.
Answers: 2
Mathematics, 21.06.2019 17:30
The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?
Answers: 2
Mathematics, 21.06.2019 20:30
Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?
Answers: 1
Mathematics, 22.06.2019 00:30
What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21
Answers: 2
Suppose the coefficient matrix of a linear system of four equations in four variables has a pivot in...
Geography, 11.06.2020 13:57
Physics, 11.06.2020 13:57
Social Studies, 11.06.2020 13:57
Geography, 11.06.2020 14:57
English, 11.06.2020 14:57
Engineering, 11.06.2020 14:57
Mathematics, 11.06.2020 14:57
Biology, 11.06.2020 14:57
Mathematics, 11.06.2020 14:57
Mathematics, 11.06.2020 14:57
Mathematics, 11.06.2020 14:57