ACT Math Practice

Front

What is the result of (5n-8)(5n+8)?

Back

25n² - 64

Front

How do you solve for x in the equation 2x + 3 = 3x - 4?

Back

x = 7

Front

If a circle has a circumference of 16π feet, what is the radius?

Back

Radius = 8 feet

Front

Calculate (q + r - s)(r - q) when q = -1, r = 4, and s = 7.

Back

Result = -20

Front

If the mean of five numbers equals their median, and four of the numbers are 14, 8, 16, and 14, what is the 5th number?

Back

5th number = 18

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.

Front

What is the quadratic formula used to solve ax² + bx + c = 0?

Back

x = (-b ± √(b² - 4ac)) / (2a)

Front

What is the Pythagorean theorem?

Back

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

Front

How do you find the mean of a set of numbers?

Back

Mean = (Sum of all numbers) / (Total count of numbers).

Front

What is the definition of a median in a data set?

Back

The median is the middle value when the numbers are arranged in order.