The expression "10^-2" represents a mathematical notation known as scientific notation. It indicates that the number 10 is raised to the power of -2, which means it is the same as 1 divided by 10 squared. In simpler terms, "10^-2" equals 0.01. This notation is often used in science and engineering to express very small or very large numbers in a more manageable form. In practical applications, "10^-2" can be used to describe measurements, such as in the metric system where it represents centi- (one hundredth). For example, centimeters are a unit of length where 1 centimeter equals "10^-2" meters. This makes it easier to work with small quantities in various fields, including physics and chemistry.