Use Identities to Find the Exact Value $\mathrm { a } = 15 | \sec 2 \pi \mathrm { t } |$

question 73

Multiple Choice

Use Identities to find the exact value.
-A rotating beacon is located 15 ft from a wall. The distance from the beacon to the point on the wall where the beacon is aimed is given by $\mathrm { a } = 15 | \sec 2 \pi \mathrm { t } |$ ,
where $t$ is time measured in seconds since the beacon started rotating. Find a for $t = 0.42$ seconds. Round your answer to the nearest hundredth.

• A) \(38.72 \mathrm { ft }\)
• B) \(60.32 \mathrm { ft }\)
• C) \(- 17.12 \mathrm { ft }\)
• D) \(17.12 \mathrm { ft }\)

---

Definitions:

Marketing Report

A document that presents market research findings, marketing performance, and strategies.

Ethical Responsibilities

The moral obligations that individuals or organizations have to act in a fair, equitable, and respectful manner.

Research Tactics

Strategies and methods employed in the collection, analysis, and interpretation of information or data for a specific purpose or investigation.

Grant Proposals

Written requests or applications for funding, submitted to organizations or government entities, detailing a plan for a project and how the requested funds will be used to accomplish specific goals.