The Sizes of Two Matrices Are Given $2 \times 2$ ; B Is

question 195

Multiple Choice

The sizes of two matrices are given. Find the size of the product AB and the size of the product BA, if the given product
can be calculated.
-A is $2 \times 2$ ; B is $2 \times 2$ .

• A) \(\mathrm { AB }\) is \(2 \times 4\); BA is \(2 \times 4\).
• B) \(\mathrm { AB }\) is \(2 \times 2\); \(\mathrm { BA }\) is \(2 \times 2\).
• C) \(\mathrm { AB }\) is \(1 \times 1\); \(\mathrm { BA }\) is \(1 \times 1\).
• D) \(\mathrm { AB }\) is \(4 \times 2\); BA is \(4 \times 2\).

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Definitions:

Common Stock

A type of security that represents ownership in a corporation, entitling the holder to vote at shareholder meetings and receive dividends.

Weighted Average Cost of Capital

This refers to the overall cost of capital for a firm, weighted by each capital component's proportion in the overall capital structure.

Market Value of Equity

The total dollar market value of a company's outstanding shares, calculated as share price times the number of shares outstanding.

Cost of Equity

The return that investors expect for investing in a company's equity, indicating the compensation the market demands for taking on the risk of owning the stock.