Math Flashcard#7A

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the formula for the volume of a cylinder?

Back

Volume = π × radius² × height.

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100.

Front

What is the formula for calculating the mean of a set of numbers?

Back

Mean = (sum of all values) / (number of values).

Front

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

Back

Mean is the average, median is the middle value, and mode is the most frequent value.

Front

How do you solve a linear equation in one variable?

Back

Isolate the variable on one side of the equation.

Front

What is the formula for the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / (2a).