8th Grade Math Semester Exam Review

Front

Is 0 a Natural Number?

Back

False

Front

If the foot of a 30-foot ladder is 8 feet from the base of a house, how high above the ground is the top of the ladder touching the house?

Back

28.9 ft

Front

What does the (E) in PEMDAS mean?

Back

Exponents

Front

What is the value of 18^0?

Back

1

Front

What is the slope of the line that passes through the points (5, 1) and (2, -7)?

Back

Slope = (y2 - y1) / (x2 - x1) = (-7 - 1) / (2 - 5) = 8/3

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height

Front

What is the Pythagorean theorem?

Back

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

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 formula for the circumference of a circle?

Back

Circumference = 2 * π * radius

Front

What is the definition of a variable in algebra?

Back

A variable is a symbol used to represent an unknown value.