What does the term "and" refer to in mathematics?

In mathematics, the term "and" typically refers to a conjunction that indicates the inclusion of a range or an interval where conditions must both be satisfied simultaneously. When we say that a variable is "between two numbers," we imply that it must meet two conditions: it must be greater than the first number and less than the second number. This is a common way to express inequalities, often written as ( a < x < b ), where ( x ) is the variable, and ( a ) and ( b ) are the boundaries of the range.

This concept is foundational in many areas of mathematics, including algebra and calculus, where understanding the intervals and how variables behave within these intervals is critical for solving equations and analyzing functions. When one speaks of conditions described using "and," it emphasizes that both conditions must be true at the same time for any valid solutions or outcomes. Hence, the answer is identified as correct due to its alignment with the definition of "and" in a mathematical context concerning intervals.