Hmmm, I'm guessing your asking if that's correct, if so, yes
Answer:
-9x+16
Step-by-step explanation:
-3x+7+-6x+9=-9x+16
-3-6= (tecnectly adding but put negative sign with ur answer!)
7+9=16
Put together and Done!
Hope helps :D
Data: (adopting)
Y = <span>$4.90
K = 2 boxes
x = ? (how much in each box)
Solving:
</span>






<span>
</span>
Option D:
The dimensions of the matrices don't align properly to find their sum.
Solution:
Given data:
![\left[\begin{array}{c}3 \\-2\end{array}\right]+\left[\begin{array}{cc}5 & -3 \\1 & 4\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7D3%20%5C%5C-2%5Cend%7Barray%7D%5Cright%5D%2B%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D5%20%26%20-3%20%5C%5C1%20%26%204%5Cend%7Barray%7D%5Cright%5D)
Dimension of matrix = Number of rows × Number of columns
Dimension of matrix
is 2 × 1
Dimension of matrix
is 2 × 2
Here, we have to add the two matrices.
<em>The dimension of the matrices must be same to add or subtract matrices.</em>
Here the dimensions are 2 × 1 and 2 × 2.
The dimensions are not same.
Hence we can't find their sum.
Option D is the correct answer.
The dimensions of the matrices don't align properly to find their sum.