​Average Costs

question 70

Multiple Choice

​Average costs.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 14 machines gives the minimum average costs.
• B) ​Using zero machines gives the minimum average costs.
• C) ​Using 24 machines gives the minimum average costs.
• D) ​Using 28 machines gives the minimum average costs.
• E) ​Using 33 machines gives the minimum average costs.

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Definitions:

Credit Memos

Documents issued by a seller to decrease the amount a buyer owes, often due to a return or refund.

Bank Statements

Documents issued by banks that summarize the financial transactions (deposits, withdrawals, charges) in an account over a specific period.

Internal Control

Systems and procedures implemented by a company to ensure the integrity of financial and accounting information, promote accountability, and prevent fraud.

Cash Shortages

The situation where the cash on hand is less than the expected amount, often indicating errors or theft.