Algebra ll
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Discrete Math
I am really stuck on these problems. I've worked a lot of them but I can't get these. Sometimes I think I know the answer but I can't show how I got it. 1.) Solve each matrix equation for X. 2X + 5A = B 2.) Find the following
asked by Ryan on February 25, 2010 
Algebra
2. Use an augmented matrix to solve the system. x + y = 5 3x – y = –1 (1 point) (1, 4) (1, 5) (3, –1)*** (5, –1) 3. When converting a system of linear equations into an augmented matrix, what equation form is needed? (1
asked by Student on January 21, 2019 
Algebra help!
1.) Solve the system by triangularizing the augmented matrix and using back substitution. xy+z=1 xy4z=7 4x+y+z=6 2.) Perform the indicated row operation, then write the new matrix. 4 4  4 9 6  5 2R1+ R2 > R2 3.) Solve
asked by Becca on March 28, 2013 
Algebra
Show equation AX=B represents a linear system of two equations in two unknowns. Solve the system and sustitute into the matrix equation to check results. A=1,2 3,5, X=x[1]x[2], B=4 12
asked by mike on December 17, 2009 
Algebra
Show equation AX=B represents a linear system of two equations in two unknowns. Solve the system and substitute into the matrix equation to check results. I have no idea can you help me out A=1,2 3,5, X=x[1]x[2], B=4 12
asked by mike on December 17, 2009

Augmented Matrix
Perform row operations on the augmented matrix as far as necessary to determine whether the system is independent, dependent, or inconsistent. DO ALL WORK BY HAND. x + 2y + 4z = 6 y + z = 1 x + 3y + 5z =10 If one subtracts the
asked by GetYourLeash on July 22, 2005 
Algebra II
1. solve this system using matrices: 3.7x2.3+4.2z=8 2.6+4.6y3.9z=10 8x+2z=20 2. Write this system as a matrix equation: 2x+y=8 7x3y=10
asked by JaneLee on October 23, 2007 
Linear Algebra
Consider the following system of linear equations: 2x1+2x2+4x3 = −12 x1+6x2−8x3 = −6 x1−2x2+9x3 = −8 Let A be the coefficient matrix and X the solution matrix to the system. Solve the system by first computing A−1 and
asked by sal on October 20, 2018 
Algebra 2(check pt 4)
1)Cramer's Rule is used to solve the system of equations:3m5n=12,4m+7n=5 Which determinant represents the numerator for n? answer=[12 5] [5 7] 2)Cramer's Rule is used to solve the system of equations:3xy+2z=17,4x+2y3z=10,and
asked by erin on July 28, 2007 
Algebra
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. 3x+yz=4
asked by Kristen on March 27, 2013 
Algebra help needed please!!
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. 3x+yz=4
asked by Kris on March 28, 2013