By Comparing a Sample's Isotope Ratio It Is Possible to See

question 9

Multiple Choice

By comparing a sample's isotope ratio it is possible to see that after 6300 years, the original radioisotope had decayed to 25% of its original value. Estimate the half life of that particular isotope.

• A) about 3200 years
• B) about 6300 years
• C) about 12600 years
• D) about 9500 years
• E) about 2500 years

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Definitions:

Net Income

The total profit of a company after all expenses, taxes, and costs have been deducted from total revenue.

Administrative Expense Budget

A forecast of future administrative costs, including expenses related to management, general office functions, and other non-production costs.

Selling Expense

Costs associated with the distribution, marketing, and sale of a product or service, including advertising, sales commissions, and retail space rental.

Depreciation

The systematic allocation of the cost of a physical asset over its expected useful life.