1st Semester Final Review Pre-Algebra

Front

Is 2/3 a rational or irrational number?

Back

Rational numbers are numbers that can be expressed as a fraction of two integers. Since 2/3 can be expressed as a fraction, it is a rational number.

Front

The number 1/3 is rational. True or False?

Back

True. 1/3 is a rational number because it can be expressed as a fraction.

Front

Translate triangle ABC to triangle A'B'C' using the transformation (x-2, y+9). What does this mean?

Back

This transformation means that every point of triangle ABC will move 2 units to the left and 9 units up to form triangle A'B'C'.

Front

Find the length of the missing side if the other two sides are 5 cm and 12 cm. What is the missing side?

Back

Using the Pythagorean theorem, the missing side is 13 cm.

Front

Back

To solve for x, multiply both sides by 3: x + 9 = 24. Then, subtract 9 from both sides: x = 15.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction where both the numerator and the denominator are integers.

Front

What is an irrational number? Give an example.

Back

An irrational number cannot be expressed as a simple fraction. Examples include pi (π) and the square root of 2 (√2).

Front

What does it mean to translate a shape in geometry?

Back

To translate a shape means to move it from one position to another without changing its size, shape, or orientation.

Front

What is the Pythagorean theorem?

Back

Front

If a triangle has sides of lengths 3 cm and 4 cm, what is the length of the hypotenuse?

Back