The Cost of Fuel Used in Propelling a Dirigible Varies

question 99

Essay

The cost of fuel used in propelling a dirigible varies as the square of its speed and is $100/hour when the speed is 100 miles/hour. Other expenses amount to $200/hour. Find the most economical speed for a voyage of 1,400 miles.

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Definitions:

Upper Respiratory Tract Infection

An infection in the upper part of the respiratory system, such as the throat, nose, and airways, common examples include the common cold and sinusitis.

Lifesaving Measures

Emergency procedures or actions taken to prevent death in critical situations, such as CPR or the use of defibrillators.

Inability To Speak

A condition where an individual is unable to articulate words or produce speech sounds, also known as aphasia.

Pulse Over 100

A heart rate exceeding 100 beats per minute in an adult, often considered tachycardia, indicating a possible underlying condition or physical state.