  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: row echelon form   start over

9 items are filed under this topic.    Page1/1            Row echelon form 2013-03-15 From Shawn:Please help me put matrix in row echelon form: 1 9 8 0 5 8 1 35 1 -4 -1 17Answered by Penny Nom.     Row echelon form 2012-09-05 From Jennifer:Hello, my name is Jennifer. I am a 12th grader in Pre-Calculus and I was wondering if you may help me with Row Echelon Form. x + 2y - 3z = -5 -2x - 4y - 6z = 10 3x + 7y - 2z = -13Answered by Penny Nom.     A linear system 2009-03-13 From Rasanga:Use the row echelon form of the augmented matrix to solve the following linear system. X1+2X2+X4=6 X3+6X4=7 X5=1Answered by Harley Weston.     A linear system 2008-08-23 From dipesh:consider the system of equations x-6y+2z=5 2x-9y-z=14 4x+12y-3z=19 by reducing the augm matrix to row echelon form, find the solution to the equation. leaving the first two equations the third is changed to -3x+6y+14z=-31 show the equations have infinitely many solutions and give a general formula for themAnswered by Penny Nom.     A linear system 2008-03-10 From sandhiya:one group of people purchased 10 hotdogs and 5 soft drinks at a cost of \$12.50. a second group bought 7 hotdogs and 4 soft drinks a ta cost of \$9.00 find the cost of a single hot and a single soft drink.(using the row echelon form to solve)Answered by Penny Nom.     Row echelon form 2008-02-21 From cOCO:USE ELEMENTARY ROW OPERATIONS TO WRITE THE MATRIX BELOW IN ROW ECHELON FORM. 1 1 8 - 2 2 -1 1 11 2 1 14 -11Answered by Penny Nom.     Row echelon form 2004-07-24 From Michael:My name is Michael and I'm in the 11th grade. I have a Math question that I can't solve. The problem is system of equations that I need to do in augmented matrix form, find the row echelon form, and solve it by using back substitution. 2x + 3y + 7z =13 3x + 2y - 5z = -22 5x+ 7y - 3z = -28Answered by Penny Nom.     Augmented matrix 2002-12-31 From Michelle:I am trying to augment a matrix so that i can find the values of the variables a, b, and c. For the life of me i can't find a solution to the matrix: 3 -5 2 ' 22 2 3 -1 ' -9 4 3 3 ' 1 I thank you for your help, MichelleAnswered by Penny Nom.     A system of equations in five unknowns 2000-03-20 From Will:I have been having some problem with the following question for some time. I would appreciate any help on solving the problem or a solution. Q: Assume that a system of equations in the unknowns x1, x2, x3, x4 and x5 when converted to row echelon form gives ...Answered by Penny Nom.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français