159 Answered Questions for the topic Matrix

Matrix Positive Entries

11/27/14

Find formulas for the entries of Mn
Let M=[1 -2            1  4]  Find formulas for the entries of Mn, where n is a positive interger
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11/27/14

Find the characteristic polynomial of the matrix
Find the characteristic polynomial of the matrix [4 -2 0  0 5 -4  2 -5 0]    
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11/16/14

Describe all solutions of Ax=0
Let A= [1 -4 5  4            2 -8 10 8]   Describe all solutions of Ax=0 x=x2 ?+x3 ? +x4?  
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11/09/14

Express the vector v as a linear combination of x and y
Express the vector v= [6,2] as a linear combination of x= [-4,-1] and y[-5,-1]   v=?x+?y
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Matrix

10/20/14

how do you Solve: |4x 3y| = |-12 15|
How do you solve the question, step by step
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Matrix

10/05/14

matrix equations
An outdoor amphitheater has 25,000 seats. Ticket prices are $15, $17, and $25 and the number of tickets priced at $17 must equal two times the number priced at $25 How many tickets of each type... more
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10/05/14

Find the inverse of the (common) coefficient matrix of the two systems.
Consider the following two systems -6x-y=2 2x-9y=3     -6x-y=3 2x-9y=2   Find the inverse of the (common) coefficient matrix of the two systems. A-1=?
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10/01/14

enter a 3x3 skew symmetric matrix A
enter a 3 times 3 skew-symmetric matrix A that has entries a21=0, a13=1, a32=2.    
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Matrix Inverse

09/27/14

Find the inverse of AB if
Find the inverse of AB if    A-1 = 3 4        -5 1   B-1 = -3 5          4 -1   (AB)-1=  
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Matrix Algebra Linear

09/22/14

solve the system using a matrix
Solve the system using a MATRIX x1+2x2-2x3-2x5+4x6=-4-x4-3x5+2x6=9x1+2x2+6x5+6x6=0 x1=?x2=?x3=?x4=?x5=?x6=?
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09/18/14

Solve the system using a matrix
Solve the system  x1+2x2-2x3-2x5+4x6=-4 -x4-3x5+2x6=9 x1+2x2+6x5+6x6=0   x1=? x2=? x3=? x4=? x5=? x6=?
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Matrix Algebra Linear Z

09/18/14

Solve the equation using matrices
8x+3y-5z=16 x= y= z=
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09/18/14

Solve the system using a matrix 1
Solve the system x1+x2-4x3=3 3x1+4x2+3x3=-8   x1= x2= x3=
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Matrix Matrices

09/16/14

Triangle ABC with A (4,5), B (-3,4) and C(1,-4) is reduced so that its perimeter is one-half the original perimeter. Write the coordinates of the result image.
We are learning about Matrices and it's still a little confusing for me. 
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09/16/14

Solve the system
Solve the system  x1+x2-4x3=3  3x1+4x2+3x3=-8   x1=? x2=? x3=?
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Matrix Algebra Linear

09/15/14

Solve the system
x1+x2=-4 x2+x3=-4 x3+x4=4 x1+x4=4   x1= x2= x3= x4=
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Matrix Algebra Linear

09/15/14

Solve the system
4x1+x2=-3 8x1+2x2=-6   x1= x2=  
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09/14/14

Determine the value of h such that the matrix is the augmented matrix of a linear system with infinitely many solutions.
 7  -3  2 14  h  4   h=?
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Matrix Algebra Linear

09/14/14

Determine the value of h such that the matrix is the augmented matrix of a consistent linear system.
   8   -6   h -24   18  3   h=?
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Matrix Algebra Linear

09/14/14

Solve the system
4  1  -3 8  2  -6   x1= x2=  
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Matrix Algebra Linear

09/11/14

Solve the system
x1+x2=-4 x2+x3=-4 x3+x4=4 x1+x4=4    
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09/11/14

Solve the system by finding the reduced row-echelon form of the augmented matrix.
Solve the system by finding the reduced row-echelon form of the augmented matrix.x+2y-4z=-4 -x-y+3z=2 x+3y-5z=-6 How many solutions are there to this system?
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09/11/14

Reduce the matrix to reduced row-echelon form
-3 1 -3 21  2  3  3 -6 2  0 -3 3
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09/10/14

Matrix A( Matrix B+Matrix C)=?
Matrix A= 7  -7          Matrix B=3   0   -1          Matrix C=x   1   w                0   8                         2   -1   1                        z   r    4                0  -8   I need... more
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09/10/14

Solve the system by finding the reduced row-echelon form of the augmented matrix.
x+2y-4z=-4 -x-y+3z=z x+3y-5z=-6   How many solutions are there to this system?
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