Find the Angle Between the Pair of Vectors to the Nearest

question 268

Multiple Choice

Find the angle between the pair of vectors to the nearest tenth of a degree.
- $$9 \mathbf { i } + 8 \mathbf { j } , - 3 \mathbf { i } + 6 \mathbf { j }$$

• A) \(74.9 ^ { \circ }\)
• B) \(99.3 ^ { \circ }\)
• C) \(158.2 ^ { \circ }\)
• D) \(75.9 ^ { \circ }\)

---

Definitions:

Foot-in-the-Door Technique

A persuasive strategy where a small request is made first, with the aim of making the person more likely to agree to a larger request later.

Door-in-the-Face Technique

A persuasion strategy where an initial, large request is made knowing it will be refused, followed by a smaller request, which is actually the desired outcome, making the second request seem more reasonable.

Political Office

denotes a position of authority or service in the government or related organization, held by an individual.

Balance Theory

A theory in social psychology suggesting that people strive for balance in their relationships and beliefs for cognitive consistency.