Algebra2(check part 1)

1)Solve the matrix:[2x] [14]for x

2)V[3 1]
[0 2]
[-4 5].The dimensions of matrix V.

3)The first row of T+U
T[4 -5 2] U[-9 6 4]
[8 -1 3] [-5 -2 3]
answer=[-5 1 6]

4)The first row of V-T.
V[3 1] T[4 -5 2]
[0 2] [8 -1 3]
[-4 5]
answer=not possible

1) Did you leave out an = sign between 2x and 14? If so, they are scalar matrics and 2x = 14, so x = 7. I have no idea what you also have 3y = 12

2. Yes, V has three row ans two columns.

3. correct
4. correct. You cannot subtract matrices of unequal dimensions.

its suppose to be
Solve the matrix:[2x] [14]for x
[3y]= [12]

well its still not posting right but the 3 is under the 2 and the 12 is under the 14

The matrix
is just an arrangement of 4 numbers. You have not set it equal to anything else, so I don't know what you mean by "solving" it for x. I also don't understand the meaning of your bracket symbols. Is is supposed to denote a determinant?
Because of the limited graphic capability here, and a shortage of available qualified staff, Jiskha is probably not a suitable place to get help with matrix problems.

thats the way my book has it.theyre in brackets.but that's basically the idea,could you look over my other problems for me?

  1. 👍
  2. 👎
  3. 👁
  1. casino online for fun
    casino online gambling
    casino online usa
    casino online application

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    Given the following vector X, find a non-zero square matrix A such that AX=0: You can resize a matrix (when appropriate) by clicking and dragging the bottom-right corner of the matrix. X= 2 -8 6 A= _ _ _ _ _ _ _ _ _ Please help, I

  2. Math

    Given the following matrix A, find an invertible matrix U so that UA is equal to the reduced row-echelon form of A: You can resize a matrix (when appropriate) by clicking and dragging the bottom-right corner of the matrix. A = 3 3

  3. linear algebra

    3. Suppose A is symmetric positive definite and Q is an orthogonal matrix (square with orthonormal columns). True or false (with a reason or counterexample)? a) (Q^(T))AQ is a diagonal matrix b) (Q^(T))AQ is a symmetric positive

  4. Math

    Directions: Use the following matrix to perform the elementary row operations sequentially. A=[3 2 |8] [5 2 |12] 1.) (1/3) R1 From the original matrix 2.) -5R1+R R2 From matrix in question 1.

  1. Diagonalize

    construct a nondiagonal 2 x 2 matrix that is diagonalizable but not invertible. Just write down a diagonal matrix with one zero on the diagonal and then apply an orthogonal transformation. E.g. if you start with the matrix: A = [1

  2. 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

  3. mathematics

    The matrix M = [−3/5 4/5] [4/5 3/5] defines an isometry of the xy-plane. (a)What special properties do the column vectors of this matrix have? (b)Verify that the point (2, 4) remains stationary when M is applied to it. (c)What

  4. 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

  1. 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

  2. Calc

    A video games shop is analyzing its sales performance using matrices. Matrix A contains the unit sales data for each product category (horizontally) per week (vertically). Matrix B contains the unit sales data for weekends for

  3. math

    Let A be an orthogonal non-singular matrix of order 'n', then the determinant of matrix 'A-I', i.e., |A-I| (where I is identity matrix) is?

  4. Trig sum please help

    Write the augmented matrix, and then solve the system, using Gauss Jordan elimination on the augmented matrix. x + 2y - z = 4 -2x + y - 4z = -6 4x - 3y + 2z = -10

You can view more similar questions or ask a new question.