On Level Semester 1 Final Review

Front

What is the perimeter of a square with side length x?

Back

The perimeter is 4x.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

What is the value of x² if x = -4?

Back

16

Front

What is the sum of 2½ and 3¾?

Back

6 1/4

Front

What is the product of -2 1/3 and 1 1/5 in simplest form?

Back

-2 4/5

Front

Which two numbers have the same absolute value?

Back

-5 and 5.

Front

What is the formula for the area of a square?

Back

Area = side².

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place over the original denominator.

Front

What is the distance formula between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).