$A=\left[\begin{array}{cc}-0.1& 0.2\\ 0.55& 0.4\end{array}\right]$

$D=\left[\begin{array}{c}3\\ 4\end{array}\right]$

Faith Welch
2022-07-26
Answered

Find the production matrix for the following input-output and demand matrices using the open model.

$A=\left[\begin{array}{cc}-0.1& 0.2\\ 0.55& 0.4\end{array}\right]$

$D=\left[\begin{array}{c}3\\ 4\end{array}\right]$

$A=\left[\begin{array}{cc}-0.1& 0.2\\ 0.55& 0.4\end{array}\right]$

$D=\left[\begin{array}{c}3\\ 4\end{array}\right]$

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juicilysv

Answered 2022-07-27
Author has **17** answers

$A=\left[\begin{array}{cc}-0.1& 0.2\\ 0.55& 0.4\end{array}\right]$

$D=\left[\begin{array}{c}3\\ 4\end{array}\right]$

The production matrix is $=\left[\begin{array}{c}-0.3+0.8\\ 1.65+1.6\end{array}\right]$

$=\left[\begin{array}{c}0.5\\ 3.25\end{array}\right]$

$D=\left[\begin{array}{c}3\\ 4\end{array}\right]$

The production matrix is $=\left[\begin{array}{c}-0.3+0.8\\ 1.65+1.6\end{array}\right]$

$=\left[\begin{array}{c}0.5\\ 3.25\end{array}\right]$

Freddy Friedman

Answered 2022-07-28
Author has **5** answers

$A=\left[\begin{array}{cc}-0.1& 0.2\\ 0.55& 0.4\end{array}\right]\ast \left[\begin{array}{c}3\\ 4\end{array}\right]=\left[\begin{array}{c}(-0.1)\ast (3)+(0.2)\ast (4)\\ (0.55)\ast (3)+(0.4)(4)\end{array}\right]=\left[\begin{array}{c}0.5\\ 3.25\end{array}\right]$

asked 2021-06-13

For the matrix A below, find a nonzero vector in Nul A and a nonzero vector in Col A.

$A=\left[\begin{array}{cccc}2& 3& 5& -9\\ -8& -9& -11& 21\\ 4& -3& -17& 27\end{array}\right]$

Find a nonzero vector in Nul A.

$A=\left[\begin{array}{c}-3\\ 2\\ 0\\ 1\end{array}\right]$

Find a nonzero vector in Nul A.

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Find an explicit description of Nul A by listing vectors that span the null space.

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Assume that A is row equivalent to B. Find bases for Nul A and Col A.

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Let $\psi $ be a linear operator on $V$, a vector space of dimension two. How do I show, given $\psi $ is not a scalar multiple of the identity, that there is a $v$ such that $v,\psi (v)$ forms a basis, and further how do I write the transformation as a matrix with respect to that matrix? For the matrix, the first column would be 0,1, but I don't know what the second column would be.

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It is given:

asked 2021-12-11

Detemine if $b$ is a linear combination of $a}_{1},{a}_{2},{a}_{3$

$${a}_{1}=\left[\begin{array}{c}2\\ 0\\ 2\end{array}\right],{a}_{2}=\left[\begin{array}{c}-4\\ 3\\ -4\end{array}\right],{a}_{3}=\left[\begin{array}{c}-5\\ 8\\ 4\end{array}\right],b=\left[\begin{array}{c}13\\ -4\\ 9\end{array}\right]$$

Choose the correct answer below

A. Vector$b$ is a linear combination of $a}_{1},{a}_{2},{a}_{3$ . The pivots in the corresponding echelon matrix are in the
first entry in the first column, the second entry in the second column, and the third entry in the third column.

B. Vector$b$ is not a lincar combination of $a}_{1},{a}_{2},{a}_{3$

C. Vector$b$ is a linear combination of $a}_{1},{a}_{2},{a}_{3$ . The pivots in the corresponding echelon matrix are in the
first entry in the first column and the third entry in the second column, and the third entry in the third column.

D. Vector$b$ is a linear combination of $a}_{1},{a}_{2},{a}_{3$ . The pivots in the corresponding echelon matrix are in the
first entry in the first column, the second entry in the second column, and the third entry in the fourth column.

Choose the correct answer below

A. Vector

B. Vector

C. Vector

D. Vector

asked 2022-07-25

If A is an n x n matrix , where are the entries on the main diagonal of A-A^T? Justify yoyr answer.