Solve the System $\begin{array} { c } x + y + z = - 6 \\x - y + 5 z = 2 \\5 x + y + z = - 26\end{array}$

question 170

Multiple Choice

Solve the system.
$\begin{array} { c } x + y + z = - 6 \\x - y + 5 z = 2 \\5 x + y + z = - 26\end{array}$

• A) \(\{ ( 1 , - 5 , - 2 ) \}\)
• B) \(\{ ( - 5 , - 2,1 ) \}\)
• C) \(\phi\)
• D) \(\{ ( 1 , - 2 , - 5 ) \}\)

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Definitions:

Rate of Return

A measure of the profitability of an investment, indicating the percentage of invested money gained or lost relative to its initial cost.

Capital Budgeting Technique

Methods used to evaluate and select long-term investments based on potential for profit and alignment with strategic goals, such as NPV or IRR.

Time Value

The principle that current money holds greater value than an identical sum in the future because of its earning potential.

Net Present Value Method

A method used in capital budgeting to evaluate the profitability of an investment or project by calculating the present value of expected future cash flows.