Perform the Indicated Row Operations on the Matrix $$\left[ \begin{array} { c c c } 1 & 7 & 1 \\- 7 & - 48 & - 8 \\- 5 & - 1 & - 39\end{array} \right]$$

question 99

Multiple Choice

Perform the indicated row operations on the matrix. Show the final result.
$$\left[ \begin{array} { c c c } 1 & 7 & 1 \\- 7 & - 48 & - 8 \\- 5 & - 1 & - 39\end{array} \right]$$
Add 7 times $R _ { 1 }$ to $R _ { 2 }$ .
Add 5 times $R _ { 1 }$ to $R _ { 3 }$ .

• A) \(\left[ \begin{array} { c c c } - 5 & 4 & 1 \\ - 7 & - 48 & - 8 \\ - 5 & - 1 & - 39 \end{array} \right]\)
• B) \(\left[ \begin{array} { c c c } 1 & 7 & 1 \\ 0 & 1 & - 7 \\ 0 & 6 & - 38 \end{array} \right]\)
• C) \(\left[ \begin{array} { c c c } 1 & 7 & 1 \\ 0 & 1 & - 1 \\ 0 & 34 & - 34 \end{array} \right]\)
• D) \(\left[ \begin{array} { c c c } 1 & 7 & 1 \\ - 48 & - 329 & - 55 \\ - 24 & 2 & - 194 \end{array} \right]\)
• E) \(\left[ \begin{array} { c c c } 1 & 7 & 1 \\ 0 & - 13 & - 3 \\ 0 & 48 & 10 \end{array} \right]\)

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Definitions:

Accounts

Financial records that track all transactions related to a specific item, such as revenues, expenses, assets, liabilities, or equity.

Normal Balance

The side (debit or credit) of an account that is usual or expected to increase the balance of that account.

Liability

Financial obligations or debts that a company owes to others, which must be settled through the transfer of assets or provision of services.

Asset

An economic resource that can be owned or controlled to produce value and that is held by a company to produce positive economic value.