Question

If $$ \begin{bmatrix} -6 & 6 & -3 \\ -1 & 2 & -5 \\ 5 & 8 & -4 \end{bmatrix} + \begin{bmatrix} -9 & -7 & 5 \\ 4 & 8 & -1 \\ 1 & 0 & -8 \end{bmatrix} + \begin{bmatrix} 4 & 9 & 4 \\ 6 & 7 & -1 \\ 5 & 8 & 6 \end{bmatrix} = \begin{bmatrix} \cdot & \cdot & \cdot \\ a & \cdot & \cdot \\ \cdot & \cdot & \cdot \end{bmatrix} $$ what is the value of the element $$ a $$? $$ a = $$ Check

Name: if beginbmatrix 6 6 3 1 2 5 5 8 4 endbmatrix beginbmatrix 9 7 5 4 8 1 1 0 8 endbmatrix beginbmatrix 4 9 4 6 7 1 5 8 6 endbmatrix beginbmatrix cdot cdot cdot a cdot cdot cdot cdot cdot endbma 73318
Uploaded: 2020-07-21T04:54:32-08:00
Duration: 1 min 38 s
Channel: Ankit Gupta
Description: if beginbmatrix 6 6 3 1 2 5 5 8 4 endbmatrix beginbmatrix 9 7 5 4 8 1 1 0 8 endbmatrix beginbmatrix 4 9 4 6 7 1 5 8 6 endbmatrix beginbmatrix cdot cdot cdot a cdot cdot cdot cdot cdot endbma 73318

          If
$$ \begin{bmatrix} -6 & 6 & -3 \\ -1 & 2 & -5 \\ 5 & 8 & -4 \end{bmatrix} + \begin{bmatrix} -9 & -7 & 5 \\ 4 & 8 & -1 \\ 1 & 0 & -8 \end{bmatrix} + \begin{bmatrix} 4 & 9 & 4 \\ 6 & 7 & -1 \\ 5 & 8 & 6 \end{bmatrix} = \begin{bmatrix} \cdot & \cdot & \cdot \\ a & \cdot & \cdot \\ \cdot & \cdot & \cdot \end{bmatrix} $$
what is the value of the element $$ a $$?
$$ a = $$
Check

if beginbmatrix 6 6 3 1 2 5 5 8 4 endbmatrix beginbmatrix 9 7 5 4 8 1 1 0 8 endbmatrix beginbmatrix 4 9 4 6 7 1 5 8 6 endbmatrix beginbmatrix cdot cdot cdot a cdot cdot cdot cdot cdot endbma 73318

Added by Derek H.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Ankit Gupta

07/21/2020

Step 1

The element 'a' is located in the second row, first column of the resulting matrix. To find the value of 'a', we need to sum the elements in the second row, first column of each of the three matrices. The first matrix is: $$ \begin{bmatrix} -6 & 6 & -3 \\ -1 & 2 Show more…

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If $$ \begin{bmatrix} -6 & 6 & -3 \\ -1 & 2 & -5 \\ 5 & 8 & -4 \end{bmatrix} + \begin{bmatrix} -9 & -7 & 5 \\ 4 & 8 & -1 \\ 1 & 0 & -8 \end{bmatrix} + \begin{bmatrix} 4 & 9 & 4 \\ 6 & 7 & -1 \\ 5 & 8 & 6 \end{bmatrix} = \begin{bmatrix} \cdot & \cdot & \cdot \\ a & \cdot & \cdot \\ \cdot & \cdot & \cdot \end{bmatrix} $$ what is the value of the element $$ a $$? $$ a = $$ Check