CA1 Review day 2

Front

What is the definition of a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the Pythagorean theorem?

Back

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (a² + b² = c²).

Front

What is the definition of a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the difference between mean, median, and mode?

Back

Mean is the average of a set of numbers, median is the middle value when numbers are arranged in order, and mode is the number that appears most frequently.

Front

What is the definition of an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the definition of a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

What is the definition of a percentage?

Back

A percentage is a fraction expressed as a part of 100.