The Function Defined By $$D ( t ) = 13 t ^ { 2 } -$$

question 181

Multiple Choice

The function defined by $$D ( t ) = 13 t ^ { 2 } -$$ 73t gives the distance in feet that a car going approximately 50 mph will skid in t seconds. Find the time it would take for the car to skid 380 ft. Round to the nearest tenth.

• A) 9.9 sec
• B) 10.3 sec
• C) 8.9 sec
• D) 10.1 sec

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Definitions:

Variable Costs

Expenses that change in proportion to the activity of a business, such as raw materials and direct labor costs.

Total Dollar Amount

The complete sum of money involved in a transaction, including all costs and taxes.

Level of Activity

A measure used in accounting and production to determine the extent to which a business operation is being utilized, often influencing cost behavior.

Direct Materials Cost

The cost of materials that are an integral part of the finished product.