9 items are filed under this topic.
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Row echelon form |
2013-03-15 |
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From Shawn:
Please help me put matrix in row echelon form:
1 9 8 0
5 8 1 35
1 -4 -1 17
Answered by Penny Nom. |
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Row echelon form |
2012-09-05 |
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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 = -13
Answered by Penny Nom. |
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A linear system |
2009-03-13 |
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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=1
Answered by Harley Weston. |
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A linear system |
2008-08-23 |
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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 them
Answered by Penny Nom. |
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A linear system |
2008-03-10 |
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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. |
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Row echelon form |
2008-02-21 |
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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 -11
Answered by Penny Nom. |
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Row echelon form |
2004-07-24 |
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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 = -28
Answered by Penny Nom. |
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Augmented matrix |
2002-12-31 |
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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, Michelle
Answered by Penny Nom. |
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A system of equations in five unknowns |
2000-03-20 |
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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 .
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Answered by Penny Nom. |
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