A 100-Foot-Long Cable of Diameter 2 Inches Is Submerged in Seawater

question 91

Multiple Choice

A 100-foot-long cable of diameter 2 inches is submerged in seawater. Because of corrosion, the surface area of the cable decreases at the rate of 900in ² per year. Express the diameter d of the cable as a function of time t (in years) . (Disregard corrosion at the ends of the cable.)

• A) inches
• B) inches
• C) inches
• D) inches
• E) inches

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Definitions:

Return on Assets

A measure of how effectively a company is using its assets to generate earnings.

Revenues

Revenues are the total amount of money received by a company for goods sold or services provided during a specific period.

Expenses

Costs incurred in the process of earning revenue, often categorized into operating and non-operating expenses.

Balance Sheet

An accounting statement that itemizes the total assets, liabilities, and equity of shareholders at a defined date.