To Use the Sqrt() Function, or Other Mathematical Library Functions

question 18

Multiple Choice

To use the sqrt() function, or other mathematical library functions, you must #include the ________ header file in your program.

• A) iostream
• B) iomanip
• C) cmath
• D) algebra
• E) mathlib

---

Definitions:

Total Fertility Rate

The average number of children a woman is expected to have over her lifetime, a key demographic indicator of population growth.

Life Expectancy

Life expectancy is the average number of years that a group of individuals of the same age is expected to live, based on current mortality statistics.

Population Growth

The increase in the number of individuals in a population due to births outpacing deaths or through migration.

Demographic Data

Information collected about the characteristics of human populations, such as age, gender, income, and education.