# Consider the matrices P = 3 1 1 3 and S = 4 2 2 4 Calculate P^n and S^n for different values of n and describe any patterns you observe. I cannot find any patterns at all. I would

206 questions
1. ## linear algebra

if: A and B are matrices and A^2 is similar to B^2 Is A guaranteed to be similar to B? ------- Matrix similarity means that the matrices are identical if one of the matrices is converted to another basis. If matrices C and D are similar: C = P^-1 * D * P

asked by mathstudent on July 20, 2007
2. ## math

Which of the following subsets of the vector space Mnn are subspaces? (a) The set of all n × n symmetric matrices (b) The set of all n × n diagonal matrices (c) The set of all n × n nonsingular matrices

asked by kirsten on February 25, 2015
3. ## Math (matrices)

No one answered my matrix question. Let me rephrase: Let A, B, and 0 be 2x2 matrices. Assuming that A is invertible and 0 is all zeroes, what is the inverse of the matrix [A|0] [B|A] (that is a 4x4 matrix represented as 4 2x2 matrices) The answer is in the

asked by James on November 16, 2006
4. ## Algebra II

Can a matrix have a two digit number? I have to add the matrices[3 4] +[2 7] [7 6] +[3 8] Sorry this is the only way I know haw to put matrices on the board.

asked by JaneLee on October 27, 2007
5. ## maths

If two matrices are known and are inverse of each other.How can we use these matrices to find the point of intersections for the given set of 3D planes? Kindly help

asked by Asfand on July 16, 2016
6. ## Algebra

Provide an appropriate response. Suppose that A and B are two matrices such that A + B, A - B, and AB all exist. What can you conclude about the dimensions of A and B? A) A is a row matrix and B is a column matrix. B) A and B have the same dimension, but

asked by sandy on July 30, 2018
7. ## Linear algebra

find the inverse of the following matrices if they exist. [1 -2 3] [3 1 0] [-2 1 1] the following represent a 3 x 3 matrices

asked by ZUkii on November 21, 2011
8. ## Math

Can someone check my answer? Given matrices A,B, and C are all 2 x 2, determine whether the equation is true for the given matrices. C(A+B) = AC +BC My answer: False Matrix multiplication is not commutative. My answer: true For matrices, A + B = B + A My

asked by Natti on December 22, 2018
9. ## Data management

Problems solving with Matrices [-3 1] * [ 4 7 0] 2 5 -3 -5 1 I'm stuck with this matrices. Please help me~~

asked by Helen on July 23, 2015
10. ## Math

I have a few questions about T-Matrix. In excel, I am suppose to work with powered matrices to construct a weighted T matrix, using a scalar of .7. Does this mean I multiply each of the powered matrices by .7? Or do I power the powered matrices by .7? Or

asked by Lisa on October 13, 2010
11. ## Mathematics

write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.

asked by SAMARA on July 16, 2012
12. ## Mathematics

write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.

asked by INDIANA on July 12, 2012
13. ## Mathematics

write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.

asked by Samara on July 20, 2012
14. ## Mathematics

write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.

asked by INDIANA on July 11, 2012
15. ## Mathematics

write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.

asked by INDIANA on July 10, 2012
16. ## Math: matrices

If A and B are both square n x n matrices, If AB = I, prove BA = I Presumably you have to do this without using the usual properties of the inverse of matrices. But we do need to use that if there exists a matrix B such that A B = I then the equation A X =

asked by mathstudent on December 4, 2006
17. ## Math

Suppose C and D are 2 × 2 matrices with det(C) = −3 and det(D) = 2. Find the determinant of the matrices 8C^3D2 and 5 C^-1

asked by Amelia on December 3, 2017
18. ## matrices

Two matrices can be multiplied only if their sizes are compatible. Suppose that U is an m × n matrix, and that V is a p × q matrix. In order for U•V to make sense, what must be true of the dimensions of these matrices? Although matrix multiplication

19. ## math

Two matrices can be multiplied only if their sizes are compatible. Suppose that U is an m × n matrix, and that V is a p × q matrix. In order for U•V to make sense, what must be true of the dimensions of these matrices? Although matrix multiplication

20. ## math

What does it mean to have two matrix variables written vertically inside parentheses? In other words, if A and B are matrices, what does this mean (imagine there is one set of parentheses spanning both rows): (A) (B) I'm trying to understand a least

asked by sergei on January 7, 2009
21. ## math

step by step how do we find the value of x and y in this matrices by the law of matrices (3 2 4 0) (x y)=(7 12)

asked by swendy on October 18, 2011
22. ## math

step by step how do we find the value of x and y in this matrices by the law of matrices (3 2 4 0) (x y)=(7 12)

asked by swendy on October 18, 2011
23. ## algebra-math

Make a preferred method of solving a system of linear equations and why. Which method do you prefer? Do you think that matrices make the process easier? Or do you prefer not to use matrices? Once again thank you for any help given on this.

asked by Mike on August 6, 2017
24. ## Math

Use a system of equations to find the quadratic function f(x) = ax^2 + bx + c that satisfies the equations. Solve the system using matrices. f(−2) = 4, f(1) = −2, f(2) = −12 The answer i got is f(x)=-2x^2-4x+8 this is the steps of how i got

asked by anonymous on April 9, 2019
25. ## Math

Matrices are as follows reading left to right: X=MatrixForm{{0,1},{1,0}} Y=MatrixForm{{0,-i},{i,0}} Z=MatrixForm{{1,0},{0,-1}} H=MatrixForm 1/sqrt(2){{1,1},{1,-1}} S=MatrixForm{{1,0},{0,i}} T=MatrixForm{{1,0},{0,exp(i(pi)/4)}} v=MatrixForm{{alpha},{beta}}

asked by Anon. on September 17, 2013
26. ## Math

There are 18 animals in the barnyard. There are 50 legs. How many cows and how many chickens are there in the barnyard? Technically, I wonder if a chicken is an animal. And are chickens and cows the ONLY "animals" in the barnyard. If we assume a chicken is

asked by Miranda on November 27, 2006
27. ## Precalculus

Find the values of x and y. Matrices.. [-4 2 3 5 3 5 2 -3 1] TIMES [2 x 5] EQUALS [9 38 y] It is difficult for me to type the matrices in but.... The first matrix is 3x3 consisting of -4,2,3 in the first row.. 5,3,5 in the second row ......2,-3,1 in the

asked by Anonymous on May 21, 2014
28. ## MATH!

The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was \$5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom

asked by hmmm... on November 2, 2009
29. ## Math

The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was \$5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom

30. ## MATH!

The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was \$5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom

asked by hmmm... on November 2, 2009
31. ## Math.

The Mountain Trail Resort sold 64 condominiums last year, all 1, 2, or 3 bedroom condominiums. The total revenue from the sale of the condominiums was \$5,493,000. The combined square footage of all the condominiums sold was 51,544 square feet. One bedroom

32. ## Pre Calculas

7. For the function defined by: f(x)= {x^2, x1} a. evaluate f(0) 8. Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3x-y=0 5x+2y=22 9. Solve the following system of equations

asked by Bob on October 6, 2015
33. ## Hall

how do you do matrices

asked by Tiarre on December 19, 2007

matrices

35. ## math

Why is (AB)^-1 = B^-1A^-1 in matrices, and not (AB)^-1 = A^-1B^-1

asked by katy on December 16, 2009
36. ## Pre Calculas

7. For the function defined by: f(x)= {x^2, x1} a. evaluate f(0) 8. Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3x-y=0 5x+2y=22 9. Solve the following system of equations

asked by Ryan on October 6, 2015
37. ## Math

Solve for X using the matrices below. 2A + 4B = −2X A= ((8,-5) (9,0) (5,-6)) B= ((0,7) (4,0) (-6,-1))

asked by anonymous on March 31, 2019
38. ## math

(3 2 4 0) (x y)=(7 12) find x and y in this matrices

asked by swendy on October 18, 2011
39. ## math

4x-y+z=-5 2x+2y+3z=10 5x-2y+6z=1 solving x,y,z with Matrices

asked by yumei on May 4, 2008

solve using matrices x+3y-3z=12 3x-y+4z=0 -x+2y-z=1

asked by Anonymous on December 7, 2011
41. ## math

4x-y-3z=8 2x+2y-z=3 6x+y-3z=2 help me solve matrices

asked by jenny on March 13, 2013
42. ## math

A and B are two matrices. If A= 1 2 4 3 Find B given that A^2 = A +B

asked by kudu on February 6, 2015
43. ## math

matrices: A=[-5 4 -6 B=[-2 4 -5 9 -8 7 8 9 3 4 -3 9] 5 -2 2] AB=? please show the work if you can.

asked by anonymous on February 8, 2010
44. ## math

(B-C)^2=(C-B)^2, Where B and C are (n x n) in matrices.Is it true or false.

asked by Fakaapo. Suetusi on April 15, 2011
45. ## Finite Math

Can someone please help me. I am not sure to work the following matrices. If A^4 = -3 4 -4 5 and A^5= 4 -5 5 -6 What is A? Can you show me how you got this? Thank you so much ;)

asked by Katy on July 21, 2015
46. ## calc

Find the inverse of each of the following matrices, if possible [i 3 1+i -i]

asked by Anonymous on April 21, 2015
47. ## algebra. help!

MATRICES What is the sum of [3/4 -2/-3]+[-5/3 -4/-2]? a. [-8/1 2/6] b. [-2/7 2/-1] c. [2/-7 6/5] d. [-2/7 -6/-5]** What is the difference of [3/4 -2/-3]-[2/7 -5/12] a. [-3/-1 3/7] b. [1/-3 3/-15] c. [-3/3 -3/15]** d. [-1/3 3/-15]

asked by Hannah on January 26, 2015
48. ## math

Solved problems on matrices

asked by Dm on November 6, 2011
49. ## math

matrices: A=[-5 4 -6 9 -8 7 4 -3 9] B=[-2 4 -5 8 9 3 5 -2 2] AB=? please show work if you can.

asked by anonymous on February 8, 2010
50. ## Algebra II

Solve this system using matrices. 3.7x - 2.3y + 4.2z = 8 2.6x + 4.6y - 3.9z = 10 8x + 2z = 20

asked by JaneLee on October 26, 2007
51. ## Pre-Calc

I have to solve these using matrices by hand. Can someone please help me? 2x-3y-2z=4 (1/4)x-(2/5)y+(3/4)z=(-1/3) -2x+1.3y-3z=5 Thank you so much! :)

asked by Tori on December 3, 2012
52. ## math

linear matrices? how to solve?

asked by me on May 7, 2009
53. ## math

how will you solve these equations using matrices x+y=1 and 3x-2y=4/3

asked by sha on June 27, 2010
54. ## math

solve this system by matrices 2x+3y-z=-8 x-y-z=-2 -4x+3y+z=6

asked by jessica on February 24, 2009
55. ## math

solve system by matrices 2x+3y-z=-8 x-y-z=-2 -4x+3y+z=6

asked by jessica on February 24, 2009
56. ## Precalculs

Use matrices to solve x+ +2y+3z=7 -x+2y-z -x+y-2z=-2 I've tried many way cant figure out

asked by Anonymous on April 21, 2016
57. ## maths

x and y are two matrices x= {-2 0} and y {4 -1} {5 1} {3 7} evaluate x^2+y is the ans={8 -1} {18 8}

asked by chantel on May 23, 2008
58. ## MathJ.C.

Solve the system using matrices 4x+2y=2 5x+8y=30

asked by JaimeC. on October 22, 2013
59. ## Math

Solve the following system of equations by using matrices. x-2y=-6 2y-z=1 x+3z=7

asked by Lola T on September 23, 2017
60. ## Analytic Geometry

Solve each equation using augmented matrices. 2x+y-2z=7 x-2y-5z=-1 4x+y+z=-1

asked by Anonymous on October 3, 2007
61. ## pre calculus

use matrices to solve the system of equations , if possible. 2x+y+2z=4 2x+2y=5 2x-y+6z=2

asked by Anonymous on December 4, 2016
62. ## pre calculus

use matrices to solve the system of equations , if possible 2x+3y+z=10 2x-3y-3z=22 4x-2y+3z=-2

asked by Anonymous on December 4, 2016
63. ## Math

solve the following system of equations using matrices 4x-2y=7 7x+y=13

asked by Keya on July 29, 2014
64. ## math

Solve the following system of equations using matrices x = -2y + 6 2x + 2y = 16

asked by kailin on July 15, 2011
65. ## maths

solve the following simultaneous equations using matrices 3x-6y=24 and -4x+5y=-23

asked by cecelia on January 2, 2008
66. ## math

(B-C)^2=(C-B)^2 ,where B and C are (n x n) matrices.what is the answer, it is true or false

asked by Fakaapo on April 18, 2011
67. ## math

slove the game with following pay-off 3*3 matrices:((2,3,1/2)(3/2,2,0)(1/2,1,1))

asked by priya on May 29, 2016
68. ## Discrete Math

( 0,0,0,1 0,0,1,0 1,1,0,1 1,1,1,0) How would I draw the adj matrices if i cannot connect c and a and d and b?

69. ## Math

Suppose A and B are non-zero matrices such that A^2=0 and B^3=0(But B^2 does not =0) find in simplst form: a)(A+B)^2 b)(A+B)^3 c)(A+B)^4 d)(A+B)^5 e)(A+B)^6

asked by Amanda on October 29, 2008
70. ## math

Solve the following matrices.(sORRY I DON'T KNOW HOW TO DO THE BRACKETS) B= 1, -4 -2, 1 3, 0 D= 0, 1 1, 0 G= -3, 1 4, 5 FIND: a) DG = b) GD = c) BG = d) DD = e) GG =

asked by heidi on November 30, 2008
71. ## math

solve the following system of the equations using matrices 10x-5y=4 7x+y=10

asked by Keya on August 11, 2014
72. ## college- Linear Algebra

Give example of two non-zero matrices A and B such that A^2=0, B^2=0 but AxB and BxA do not equal zero.

asked by Amanda on November 6, 2008
73. ## Linear Algebra

Give example of two non-zero matrices A and B such that A^2=0, B^2=0 but AxB and BxA do not equal zero.

asked by Amanda on November 6, 2008
74. ## Linear Algebra

Suppose A and B are non-zero matrices such that A^2=0 and B^3=0(But B^2 does not =0) find in simplst form: a)(A+B)^2 b)(A+B)^3 c)(A+B)^4 d)(A+B)^5 e)(A+B)^6

asked by Amanda on October 29, 2008
75. ## MATH

Perform the operation for each equation, if there is a solution (Matrices) [4k -8y ] [5k+6y 2k+1] [6z - 3x] - [2z+5x z+4] [2k + 5a] [4k+6a 3a+2]

asked by Daria on December 1, 2010
76. ## Maths

Let A,B and C be matrices such that A=(1 2 3 1 2 3) , B=(1 2 2 4 2 3) and C=AB. What is the sum of all the elements (entries) of matrix C?

asked by OIan on April 16, 2013
77. ## calc

Is the matrix 6 0 0 5 a linear combination of the matrices 1 0 0 1 and 1 0 0 0 ? how do you figure this out?

asked by sam on January 13, 2015
78. ## Math

Find a system of linear equations corresponding to the following augmented matrices: (a) 2 0 |0 3 −4 |0 0 1 |1 (b) 3 0 −2 |5 7 1 4 |−3 0 −2 1 |7 (c) 7 2 1 −3 |5 1 2 4 0 |1 (d) 1 0 0 0 |7 0 1 0 0 |−2 0 0 1 0 |3 0 0 0 1 |4

asked by Matt on October 25, 2011
79. ## Matrices (math)

0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B) Solve for A and B using matrices

asked by Jess on May 2, 2013
80. ## Matrices

Solve the system using matrices. Show all the row operations that you use. 3x-9y=30 2x+5y= -2

asked by Tayb on September 21, 2016
81. ## math

Find values of x and y, if any, that will make the matrices equal. [ x y ] = [ 3 5 ] 1 9 1 9 a. x=-3,y=-5 b. x=5,y=3 c. x=-3,y=5 d. x=3,y=5 e. no solution

asked by laura on August 26, 2016
82. ## algebra

solve the set of linear equations by the matrices method: a+3b+2c=3, 2a-b-3c=-8,5a+2b+c=9

asked by linear on April 7, 2015
83. ## PRECALC QUESTION

Solve for "x" and "y" given the following matrix equation: (2x, 0.5y, -2, 1) * (3, -2, 0, 1) = (-24, 19, -6, 5) (the matrices are going from left to right, they're all 2x2's.)

asked by Aly on May 25, 2014
84. ## Algebra

How would you solve this matrices using the Gauss-jordan elimination method? {[-5, 8, 10]} {[5, 8, 4]} {[10, 8, 5]} {[5, 4, 8]}

asked by Jesse on May 18, 2009
85. ## math

Let A,B and C be matrices such that A=⎛⎝132213⎞⎠, B=(122423) and C=AB. What is the sum of all the elements (entries) of matrix C?

asked by ayan on April 16, 2013
86. ## Linear Algebra

Find the inverse of the matrices if they exist. Use the algorithm introduced in this section. 1 2 -1 -4 -7 3 -2 -6 4

asked by Allan on October 5, 2011
87. ## Pre-Calculus/Trigonometry

Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22

asked by Anonymous on September 29, 2014
88. ## Math

Find the inverse for the following matrices: 2 and -4 is on top 6 and 3 is on bottom My answer is 90 120 -180 60

asked by Aria on April 25, 2017
89. ## math

use dominance to slove the game with following pay-off matrices: ((2 3 1/2) (3/2 2 0) (1/2 1 1)). ANS: A=(1/4,0,3/4); B=(1/4,0,3/4); v=7/8. i got answer, but how to do this? i need solution

asked by priya on May 29, 2016
90. ## pre-calc - JAI

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2

asked by Ciara on April 17, 2015

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2

asked by Ciara on April 16, 2015
92. ## Buisness Math

Given the following matrices: Compute (i) AB (ii) A+2B (iii) AC (iv) 5C (v) B-C Note:Give proper reason where computation is not possible.

93. ## pre-calc

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2

asked by Ciara on April 16, 2015
94. ## pre-calc

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2

asked by Ciara on April 16, 2015
95. ## Math Help

Hi! I need help with this question. Thanks! Directions: To solve these problems, you need to find the inverses of these 2x2 matrices. a.) D= [-3 -6 6 12] b.) C= [2 1 7 3]

asked by Katy on March 30, 2015
96. ## Solving system of linear equations

I already know the 3 methods of doing it, but I recently found out about using matrices to solve it. How exactly do you do that? All I can remember is something with rref on my calculator.

asked by Chopsticks on February 22, 2009
97. ## pre - CALCULUS

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2

asked by Ciara on April 15, 2015
98. ## Pre-Calculus/Trigonometry

Solve the following system of equations algebraically. Verify the solution by using matrices. 8x-2y=5 -12x+3y=7

asked by Anonymous on September 30, 2014
99. ## Maths

7i1 + 9i2 = 3 5i1 + 7i2 = 1 where i1 and i2 represent current. Find the values of i1 and i2 using matrices. ? any help thanks

asked by Sammy on January 11, 2017