Express the Vector as a Product of Its Length and Direction

question 108

Multiple Choice

Express the vector as a product of its length and direction.
- $\frac { 15 } { 7 } j + \frac { 8 } { 7 } \mathbf { k }$

• A) \(\frac { 17 } { 7 } \left( \frac { 15 } { 7 } \mathbf { j } + \frac { 8 } { 7 } \mathbf { k } \right)\)
• B) \(\frac { 289 } { 49 } \left( \frac { 15 } { 7 } \mathbf { j } + \frac { 8 } { 7 } \mathbf { k } \right)\)
• C) \(\frac { 17 } { 7 } \left( \frac { 15 } { 17 } \mathbf { j } + \frac { 8 } { 17 } \mathbf { k } \right)\)
• D) \(\frac { 17 } { 7 } ( \mathbf { j } + \mathbf { k } )\)

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Definitions:

Fear-based

Motivated or driven by fear, often leading to behaviors aimed at avoiding, minimizing, or surviving perceived threats.

Public Health Messages

Communications designed to inform and influence individual behaviors and attitudes towards a healthier community, often focusing on disease prevention and health promotion.

Sleeper Effect

A delayed impact of a message that occurs when an initially discounted message becomes effective, as we forget its source or its context.

Trustworthy

describes a person or entity that can be relied on as honest or truthful.