Determine Whether a and B Are Inverses A) No
B) Yes

question 69

Multiple Choice

Determine whether A and B are inverses.
- $$A = \left[ \begin{array} { r r r } - 2 & - 1 & - 5 \\2 & - 1 & 3 \\1 & 4 & - 2\end{array} \right] \text { and } B = \left[ \begin{array} { c c c } \frac { 5 } { 16 } & \frac { 11 } { 16 } & \frac { 1 } { 4 } \\- \frac { 7 } { 32 } & - \frac { 9 } { 32 } & \frac { 1 } { 8 } \\- \frac { 9 } { 32 } & - \frac { 7 } { 32 } & - \frac { 1 } { 8 }\end{array} \right]$$

• A) No
• B) Yes

---

Definitions:

Per Unit Costs

Refers to the cost associated with producing or acquiring a single unit of product or service, inclusive of all variable and allocated fixed costs.

Lease Agreement

A contract stipulating the terms under which one party agrees to rent property owned by another party.

Fixed Fee

A pricing structure where a single set price is charged for a service, regardless of the time or resources used to complete it.

Charge Per Copy

The amount billed for each photocopy or printed page, typically in the context of office equipment or copy services.