Carbon-14 Decays at a Rate Proportional to the Amount Present

question 15

Multiple Choice

Carbon-14 decays at a rate proportional to the amount present. Which of the following is the differential equation for the amount, C, of carbon-14 present at time t?

• A) , with k positive
• B) , with k negative
• C) , with k positive
• D) , with k negative

---

Definitions:

Pure Monopoly

A market structure where a single seller sells a unique product in the market and no close substitutes exist.

Cartel

Market in which some or all firms explicitly collude, coordinating prices and output levels to maximize joint profits.

Price Strategies

Techniques used by companies to price their products or services with a view to maximizing profits or market share.

Marginal Revenue Function

The rate at which total revenue changes with respect to the output quantity change.