Find the Inverse of the Invertible Matrix $$\left[ \begin{array} { c c } 5 & 5 \\- 5 & 0\end{array} \right]$$

question 48

Multiple Choice

Find the inverse of the invertible matrix.
- $$\left[ \begin{array} { c c } 5 & 5 \\- 5 & 0\end{array} \right]$$

• A) \(\left[ \begin{array} { l l } 0 & - \frac { 1 } { 5 } \\ \frac { 1 } { 5 } & \frac { 1 } { 5 } \end{array} \right]\)
• B) \(\left[ \begin{array} { c c } \frac { 1 } { 5 } & \frac { 1 } { 5 } \\ 0 & - \frac { 1 } { 5 } \end{array} \right]\)
• C) \(\left[ \begin{array} { c c } \frac { 1 } { 5 } & - \frac { 1 } { 5 } \\ \frac { 1 } { 5 } & 0 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r } 0 & \frac { 1 } { 5 } \\ - \frac { 1 } { 5 } & \frac { 1 } { 5 } \end{array} \right]\)

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Definitions:

Bond

An interest-bearing note payable usually in $1,000 denominations issued by a corporation to a large group of lenders.

Annual Interest Rate

The percentage of interest that will be charged or earned on a principal amount over the course of a year.

Face Value

The nominal value or dollar value printed on a security or a financial instrument, such as a bond or a stock certificate.

Market Rate

The prevailing interest rate available in the marketplace for instruments of similar risk and maturity.