Solve for X in the Equation Given A) $$\left[ \begin{array} { c c c } - 15 & 4 & - 16 \\- 20 & - 8 & 19\end{array} \right]$$

question 13

Multiple Choice

Solve for X in the equation given. $$5 A + 15 B = 5 X , A = \left[ \begin{array} { c c c } - 9 & 7 & - 4 \\- 5 & - 2 & - 2\end{array} \right] \text { and } B = \left[ \begin{array} { c c c } - 2 & - 1 & - 4 \\- 5 & - 2 & 7\end{array} \right]$$

• A) \[\left[ \begin{array} { c c c }
• - 15 & 4 & - 16 \\
• - 20 & - 8 & 19
• \end{array} \right]\]
• B) \[\left[ \begin{array} { c c c }
• - 11 & 6 & - 8 \\
• - 10 & - 4 & 5
• \end{array} \right]\]
• C)not possible
• D) \[\left[ \begin{array} { c c c }
• - 75 & 20 & - 80 \\
• - 100 & - 40 & 95
• \end{array} \right]\]
• E) \[\left[ \begin{array} { c c c }
• - 3 & 10 & 8 \\
• 10 & 4 & - 23
• \end{array} \right]\]

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Definitions:

Tornado Chart

A graphical method used to display the sensitivity of a result to changes in its input variables, usually in the form of a horizontal bar chart.

NPV

Net Present Value, a calculation used to assess the profitability of an investment, representing the difference between the present value of cash inflows and outflows over a period of time.

Market Size

An estimation of the total volume of goods or services that is available for purchase within a specific market.

Crystal Ball

A software package used for risk analysis and simulation in Microsoft Excel.