Find the Determinant of the Matrix $$\left[ \begin{array} { c c } 7 & 1 \\- 1 & 2\end{array} \right]$$

question 33

Multiple Choice

Find the determinant of the matrix.​ $$\left[ \begin{array} { c c } 7 & 1 \\- 1 & 2\end{array} \right]$$ ​

• A)15
• B)13
• C) \(- 13\)
• D) \(- \frac { 1 } { 13 }\)
• E) \(- 15\)

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Definitions:

Activity-Based Costing

A costing method that assigns overhead and indirect costs to specific products or projects based on their activity levels.

Overhead Cost

Expenses that are not directly attributed to creating a product or service but are necessary for running the business, such as rent, utilities, and office supplies.

Products

Items or goods that are manufactured or refined for sale.

Activity-Based Costing

A costing methodology that assigns the costs of overhead activities to products or services based on their consumption of those activities, aiming to provide more accurate cost information.