Solve the Problem $15 ^ { \circ }$ And $23 ^ { \circ }$

question 127

Multiple Choice

Solve the problem.
-An airplane is sighted at the same time by two ground observers who are 3 miles apart and both directly west of the airplane. They report the angles of elevation as $15 ^ { \circ }$ and $23 ^ { \circ }$ . How high is the airplane? Round to the nearest hundredth of a mile.

• A) \(3.29 \mathrm { mi }\)
• B) \(1.17 \mathrm { mi }\)
• C) \(0.78 \mathrm { mi }\)
• D) \(2.18 \mathrm { mi }\)

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Definitions:

Mental Activity

The cognitive process of thinking, reasoning, and processing information.

Decision Making

The act of choosing involves recognizing a choice that needs to be made, assembling necessary information, and weighing up various possible solutions.

Limits to Rationality

The boundaries within which human reasoning and decision-making effectiveness are constrained, often due to a lack of information or cognitive capabilities.

Risk

The possibility of facing harm or loss when engaging in an activity or making a decision.