Using Matrix $A=\left[\begin{array}{rrr}3 & 7 & 4 \\2 & -1 & 6\end{array}\right]$

question 46

Multiple Choice

Using matrix $A=\left[\begin{array}{rrr}3 & 7 & 4 \\2 & -1 & 6\end{array}\right]$ and $B=\left[\begin{array}{rrr}-1 & 5 & 2 \\7 & 10 & 1 \\-2 & 5 & -1\end{array}\right]$ which of the following is a true statement?

• A) Matrix A has an inverse.
• B) \(A+B=\left[\begin{array}{rrr}
• 2 & 12 & 6 \\
• 9 & 9 & 7 \\
• -2 & 5 & -1
• \end{array}\right]\)
• C) AB exists and BA does not exist.
• D) BA exists and AB does not exist.

---

Definitions:

Historical Par Value

A nominal value assigned to a security or stock when it is issued, which remains unchanged over time despite market fluctuations.

Market Value

Market value is the current price at which an asset or service can be bought or sold in a marketplace.

Current Liabilities

Short-term financial obligations due within one year or within the normal operating cycle of a business, such as accounts payable and short-term loans.

Current Market Value

The most recent price at which an asset or service can be bought or sold in a competitive marketplace.