Solve the Problem $\mathrm { d }$ From a Long Wall $\mathrm { d }$

question 436

Multiple Choice

Solve the problem.
-A rotating beacon is located a distance $\mathrm { d }$ from a long wall. The distance $\mathrm { d }$ is given by $\mathrm { d } = 8$ tan $2 \pi \mathrm { t }$ , where $t$ is the time measured in seconds since the beacon started rotating. Solve the equation for $t .$

• A) \(t = \frac { 1 } { 2 \pi } \arctan \frac { d } { 8 }\)
• B) \(t = 2 \pi \arctan \frac { d } { 8 }\)
• C) \(t = 2 \pi \tan \frac { d } { 8 }\)
• D) \(t = \frac { 1 } { 2 \pi } \tan \frac { d } { 8 }\)

---

Definitions:

Stanford-Binet Intelligence Scale

A standardized test that assesses intelligence and cognitive abilities in children and adults, used widely in educational and clinical settings.

Mental Age

A measure of an individual's mental ability expressed as the age at which an average individual reaches the same level of performance.

Charles Spearman

A psychologist known for his pioneering work in statistics and intelligence, specifically for his development of factor analysis and the concept of a general intelligence factor, "g".

Intelligence

The ability to acquire, understand, and apply knowledge and skills, and to adapt to new situations.