125 Answered Questions for the topic matrices

04/06/22

#### System of equations question!

Afternoon. I'm struggling to understand where to really go with this question! It reads as follows:========================"A lot of people have taken to baking as a pandemic interest. You’ve... more

03/12/22

#### Precalculus Matrices Transformations Problem

A transformation rotates about the origin by an angle of  counter-clockwise, then dilates (with center at the origin) by a factor of  Find the matrix for this transformation.Any help would be... more
Matrices Rank Of A Matrix

03/10/22

#### Given the following two matrices

matrix G= -3 0 6 2 -5 4 6 0 1 -2 0 1matrix H= a 2 2 2 1 2 2 2 aDetermine the rank of G and G^T

03/03/22

#### Identifying solutions to a linear inequality in two variables

For each ordered pair x,y, determine whether it is a solution to the inequality y<−2x-8. X Y4 -192 -7-5 2-3 3 Are they a solution yes or No

10/17/21

#### Matrices question

Hi I'm am struggling to answer the last question in my textbooks chapter...Three crop sprays are manufactured by combining chemicals A, B and C as follows:One barrel of spray P contains 1 unit of... more

04/30/21

#### Show that B is the inverse of A.

A = -1/2 -5/4 B = 8 5 1 2 -4 -2To show that B is the inverse of A, we need to show that AB = I = BA.AB = -4 + ___ -5/2 + ___ ... more

04/17/21

#### Use matrices and Gauss-Jordan elimination to solve systems of linear equations

The matrix 1 0 4 0 0 1 −6 −1 0 0 −5 5 can be reduced in the row echelon form 1 0 0 a 0 1 0 b 0 0 1 c where a, b, and c are real numbers. Find a. (Enter an exact number.)a = ____

12/16/20

#### Please, help-me with this Linear Algebra question

If T:R4→R4 is an linear transformation and pT(t) a characteristic polynomial of T, which of these options T is diagonalizablea) pT(t) = t^4 - 1 b) pT(t) = t^3(t + 2) c) pT(t) = t^2(t^2 - 1) d)... more
Matrices Calculus

11/19/20

#### Which matrix is not invertible?

1) 2 0 -1 3 1 0 3 3 3 2) 0 3 0 3 0 3 3 0 2 3) 1 0 0 0 1 0 0 0 1 4) 1 1 1 0 1 1 0 0 1
Matrices Calculus

11/19/20

#### Consider two invertible matrices A and B. Which one of the following is equal to A(AB)-1B?

Consider two invertible matrices A and B. Which one of the following is equal to A(AB)-1B?a)AB-1A-1Bb)Ic)AB/ABd)1
Matrices Calculus

11/19/20

#### Given the following matrix.

Given the following matrix A:1 0 0a 1 0 b a 1 Which of the following statements must be true for all a, b ∈ R? a) Ax = 0 b) AT = Ac) det(A) < 0 d) det(A) = a2 - b
Matrices Calculus

11/19/20

#### A square matrix A has a non-zero determinant. Exactly how many solutions are there to the equation Ax=b?

A square matrix A has a non-zero determinant. Exactly how many solutions are there to the equation Ax=b?

10/21/20

#### Find the matrix that performs this translation.

This problem will walk through the process of rotating by 90 degrees counterclockwise around the point (3, 5). Our strategy for rotation around the point (3, 5) will be to begin with a vector whose... more
Matrices Algebra

09/03/20

#### Find value of X for which matrices A does not have an inverse

A = x 5 1 3how is this meant to be solved or explained why it can't?

08/06/20

#### Performing Matrix Operations

Let A = [0, 1, 2, 3], B = [2, 0 , 1, 1], C = 1, 0, 4, 1, 3, -1], D = [0, 0, 1, -1, 2, 1, 1, 3, 0]For each of the following either state that it is not defined or perform the indicated operation(s).... more
Matrices Finite Math

07/27/20

#### Finite Math: Matrices

Let F = [0, 1, 1, 2, 0, 1, 0, 2, 3], and G = [1, 1/2, -1/2, 3, 0, -1, -2, 0, 1]Are F and G inverses of each other? Why?
Matrices Finite Math

07/27/20

#### Finite Math: Matrices

Let A = [0, -1, 2, 3], B = [2, 1, 4, 0], C = [1, 2 , 3, 0, -2, 1], D = [4, 5, 0, -3, 1, 1], [E = 1, 3, 0, 0, 4, -1, 1, 1, 0]For each of the following, either perform the indicated operation(s) or... more

07/25/20

#### Systems of Equations/Matrices

Solve each of the following systems of equations. If the system has a unique solution (one solution), state this and exhibit the solution. If the system is inconsistent (has no solutions) state... more

05/12/20

#### How to construct a matrixto project 4-dimensional space to a 2-dimensional plane?

How to Construct a matrix to project vectors in 4-dimensional space to a 2-dimensional plane that lies in the space and passes through the origin and the points (1 ,-1, -1, 1) and (1, -1, 1, 1).
Matrices Algebra 2

01/24/20

#### Algebra 2, matrices help

If matrix C is a 5 X 2 matrix and D is a 2 X 1 matrix, what are the dimensions of C•D?

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