Suppose the Average Costs of a Mining Operation Depend on the Number

question 146

Multiple Choice

Suppose the average costs of a mining operation depend on the number of machines used, and average costs, in dollars, are given by , , where x is the number of machines used. How many machines give minimum average costs? ​

• A) Using 25 machines gives the minimum average costs.
• B) Using zero machines gives the minimum average costs.
• C) Using 35 machines gives the minimum average costs.
• D) Using 50 machines gives the minimum average costs.
• E) Using 55 machines gives the minimum average costs.

---

Definitions:

Gross Rating Points (GRP)

Measure used for various media advertising—print, radio, or television; GRP = Reach × Frequency.

Vogue

Vogue refers to the prevailing fashion, style, or trend within the general public, often used to describe the current popularity of certain designs, behaviors, or cultural phenomena.

Direct Marketing

A form of advertising where companies communicate directly to customers through various media, including mail, email, texts, and flyers, without intermediaries.

Win-Win Situation

A scenario in which all parties involved gain benefits or advantageous outcomes.