Perform the Row Operation(s) on the Given Augmented Matrix A) $\left[ \begin{array} { r r | r } - 4 & - 28 & - 40 \\ 0 & - 20 & - 44 \end{array} \right]$

question 233

Multiple Choice

Perform the row operation(s) on the given augmented matrix.
- $$\begin{array} { l } \mathrm { R } _ { 2 } = - 4 \mathrm { r } _ { 1 } \\{ \left[ \begin{array} { l l | l } 1 & 7 & 10 \\4 & 8 & - 4\end{array} \right] }\end{array}$$

• A) \(\left[ \begin{array} { r r | r } - 4 & - 28 & - 40 \\ 0 & - 20 & - 44 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r | r } 1 & 3 & 10 \\ 0 & 10 & 18 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r | r } - 4 & - 28 & - 40 \\ 4 & 8 & - 4 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r | r } 1 & 7 & 10 \\ 0 & - 20 & - 44 \end{array} \right]\)

---

Definitions:

Factory

A building or set of buildings where goods are manufactured or assembled chiefly by machine.

Ending Inventory

The cumulative worth of products on offer for sale when an accounting cycle ends.

Gross Margin

The gap between the income from sales and the expense of goods sold, represented as a proportion of sales income.

Net Sales

The revenue from sales of goods or services after deducting returns, allowances, and discounts.