Indicate Whether the Function Is One-To-One $t$ , in Minutes, After the Beginning of the Leak, the the Gulf

question 61

Multiple Choice

Indicate whether the function is one-to-one.
-An oil well off the Gulf Coast is leaking, with the leak spreading oil over the surface of the gulf as a circle. At any time $t$ , in minutes, after the beginning of the leak, the radius of the oil slick on the surface is $r ( t ) = 4 t$ ft. Find the area A of the oil slick as a function of time.

• A) \(A ( r ( t ) ) = 16 \pi t ^ { 2 }\)
• B) \(\mathrm { A } ( \mathrm { r } ( \mathrm { t } ) ) = 16 \mathrm { t } ^ { 2 }\)
• C) \(\mathrm { A } ( \mathrm { r } ( \mathrm { t } ) ) = 4 \pi \mathrm { t } ^ { 2 }\)
• D) \(A ( r ( t ) ) = 16 \pi t\)

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Definitions:

Work in Process

This includes partially finished goods that are in the process of being manufactured but are not yet complete.

Job-order Costing

A costing system used to determine the cost of producing specific jobs or batches, where costs are assigned to each job individually.

Indirect Materials

Materials used in the production process that cannot be easily traced back to the final product.

Work in Process

Inventories that refer to materials and goods partially processed but not yet completed, often treated as an asset on the balance sheet.