ACT Math Practice

Front

If n = 8 and 16· 2‴ = 4″⁻⁸, then m = ?

Back

m = -4

Front

How many irrational numbers are there between 1 and 6?

Back

Infinitely Many

Front

What is the value of 50 - 3(x² -y²) + x when x= 6, and y = -4?

Back

-4

Front

What is 4% of 80?

Back

3.2

Front

Write the standard form of 8.98 x 10^5.

Back

8980000

Front

What is the formula for the area of a circle?

Back

A = πr², where r is the radius.

Front

What is the Pythagorean theorem?

Back

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

Front

What is the quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / 2a.

Front

Define an irrational number.

Back

A number that cannot be expressed as a fraction of two integers.

Front

What is the difference between a rational and an irrational number?

Back

Rational numbers can be expressed as fractions; irrational numbers cannot.