Solve the Problem $115 \mathrm { ft }$ B) $173 \mathrm { ft }$

question 48

Multiple Choice

Solve the problem.
-A conservation officer needs to know the width of a river in order to set instruments correctly for a study of pollutants in the river. From point A, the conservation officer walks 100 feet downstream
And sights point B on the opposite bank to determine that ϴ = 30° (see figure) . How wide is the river
(round to the nearest foot) ?

• A) \(115 \mathrm { ft }\)
• B) \(173 \mathrm { ft }\)
• C) \(50 \mathrm { ft }\)
• D) \(58 \mathrm { ft }\)

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Definitions:

Autonomic Nervous System

The part of the nervous system that controls involuntary bodily functions, such as heartbeat and digestion.

Sympathetic Nervous System

Part of the autonomic nervous system responsible for activating the body's fight-or-flight response during stressful situations.

Parasympathetic Nervous System

A division of the autonomic nervous system responsible for stimulating "rest-and-digest" or "feed and breed" activities when the body is at rest, promoting calming and a return to maintenance functions.

Central Nervous System

This refers to the complex system comprised of the brain and spinal cord, acting as the primary control center for processing and sending out nerve signals throughout the body.