Model Applied Situations with Matrix Operations
-Adjust the Contrast by Leaving

question 33

Multiple Choice

Model Applied Situations with Matrix Operations
-Adjust the contrast by leaving the black alone and changing the light grey to dark grey. Use matrix addition to accomplish this.

• A)\(\left[ \begin{array} { l l l } 1 & 3 & 1 \\ 1 & 3 & 1 \\ 3 & 3 & 3 \end{array} \right] + \left[ \begin{array} { l l l } 1 & 0 & 1 \\ 1 & 0 & 1 \\ 0 & 0 & 0 \end{array} \right] = \left[ \begin{array} { l l l } 2 & 3 & 2 \\ 2 & 3 & 2 \\ 3 & 3 & 3 \end{array} \right]\)
• B)\[\left[ \begin{array} { l l l }
• 1 & 3 & 1 \\
• 1 & 3 & 1 \\
• 3 & 3 & 3
• \end{array} \right] + \left[ \begin{array} { l l l }
• 1 & 1 & 1 \\
• 1 & 1 & 1 \\
• 1 & 1 & 1
• \end{array} \right] = \left[ \begin{array} { l l l }
• 2 & 3 & 2 \\
• 2 & 3 & 2 \\
• 3 & 3 & 3
• \end{array} \right]\]
• C)\[\left[ \begin{array} { l l l }
• 1 & 3 & 1 \\
• 1 & 3 & 1 \\
• 3 & 3 & 3
• \end{array} \right] + \left[ \begin{array} { r r r }
• 0 & - 1 & 0 \\
• 0 & - 1 & 0 \\
• - 1 & - 1 & - 1
• \end{array} \right] = \left[ \begin{array} { l l l }
• 1 & 2 & 1 \\
• 1 & 2 & 1 \\
• 3 & 2 & 2
• \end{array} \right]\]
• D)\[\left[ \begin{array} { l l l }
• 1 & 3 & 1 \\
• 1 & 3 & 1 \\
• 3 & 3 & 3
• \end{array} \right] + \left[ \begin{array} { r r r }
• 1 & - 1 & 1 \\
• 1 & - 1 & 1 \\
• - 1 & - 1 & - 1
• \end{array} \right] = \left[ \begin{array} { l l l }
• 1 & 2 & 1 \\
• 1 & 2 & 1 \\
• 3 & 2 & 2
• \end{array} \right]\]

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Definitions:

Times Interest Earned

This is a financial ratio that measures a company's ability to meet its debt obligations by comparing its interest expenses to its earnings before interest and taxes.

Gross Margin Percentage

A financial metric that indicates the proportion of money left over from revenues after deducting the cost of goods sold, expressed as a percentage of total revenue.

Earnings Per Share

A measurement of a company's profitability, calculated by dividing net income by the number of outstanding shares of its common stock.

Price-Earnings Ratio

A valuation metric for stocks, calculated by dividing the current market price of a share by its earnings per share (EPS).