Question

I need help 12th grade work

Answer 1

`\left[\begin{array}cc2&4&5\\0&10&2\end{array}\right]`

Explanation:

You want the first row of this matrix replaced by half its value.

`\left[\begin{array}cc4&8&10\\0&10&2\end{array}\right]`

Row operation

This row operation is simple enough. All you do is divide every value in the first row by 2. The second row of the matrix is unaffected. The result is ...

`\boxed{\left[\begin{array}c2&4&5\\0&10&2\end{array}\right]}`

<95141404393>