The Half-Life of a Certain Radioactive Substance Is 5 Days

question 113

Essay

The half-life of a certain radioactive substance is 5 days. The initial size of a sample is 10 grams.(a) Find the amount of the substance remaining after 20 days.(b) Find the amount of the substance remaining after t days.(c) Use a graph to estimate, to the nearest 0:01 gram, the amount remaining after 14 days.(d) Use the graph to estimate, to the nearest 0:1 day, the amount of time required for the mass of the substance to be reduced to 0:1 gram.

---

Definitions:

Tenants-In-Common

A form of co-ownership where each tenant (or owner) has an undivided interest in the property, and may have differing share sizes.

Ownership

The legal right to possess, use, control, and dispose of property, assets, or intellectual property.

Restrictive Covenants

Agreements included in contracts that restrict or limit actions of the parties, often related to employment, land use, or business operations.

Estates In Land

Various forms of ownership or rights in real property, including fee simple, life estate, and leasehold.