The answer is 68/5 - 54/5i
For part a I would say you can’t use that translation to change it back to the original triangle. I tried the rule out for myself
My coordinate was 3, 6 and applied the -7 -6 rule and got -4,0.
Then I used the rule that they have to translate it back which was -6 -7 and there’s no way it can be translated back to 3, 6
So the answer is no the rule can’t be used to translate it back
Can you mark branliest
Answer:
Firstly, it is important to note that the multiplication of matrices is done in this way:
Columns x Rows or viceversa
Now, two matrices can be multiplied only if their dimensions are compatible, which means that the number of columns in the first matrix must be equal to the number of rows in the second matrix.
In other words:
Two matrices A and B are said to be multiplies if the number of columns in A coincides with the number of rows in B.
In this context, the correct option is:
![\left[\begin{array}{c}1&-1\end{array}\right] \left[\begin{array}{cc}0&4\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7D1%26-1%5Cend%7Barray%7D%5Cright%5D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D0%264%5Cend%7Barray%7D%5Cright%5D)
Where A is:
![\left[\begin{array}{c}1&-1\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7D1%26-1%5Cend%7Barray%7D%5Cright%5D)
And B is:
As you can see, the number of columns in A coincides with the number of rows in B
<em><u>It's 30</u></em>
<em>Hope that helped!</em>