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On Rural Highways, the Average Speed S (In Miles Per

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On rural highways, the average speed S (in miles per hour) is related to the amount of curvature C (in degrees) of the road. Suppose that on a straight road (C = 0) , the average speed is 47.5 miles per hour and that this decreases by 0.65 mph for each additional degree of curvature. What is the average speed if the curvature is 15 degrees?


Definitions:

Fixed Cost

A cost that does not change with an increase or decrease in the amount of goods or services produced or sold by a business.

Degree of Operating Leverage

A measure that quantifies how much sales revenue can affect operating income due to the presence of fixed costs in a company's cost structure.

Pretax Profit

The profit earned by a company before any tax is deducted, showing the company's earnings directly from its operations.

Break-Even Point

The financial state where total costs equal total revenues, resulting in no net loss or gain for the business.

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