7th Grade Math State Test Review

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

What is the formula for the surface area of a cube?

Back

The surface area (SA) of a cube is given by the formula SA = 6s², where s is the length of a side.

Front

How do you simplify the expression 2(3x - 1) - 3x + 4?

Back

First, distribute: 6x - 2 - 3x + 4. Then combine like terms: 3x + 2.

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio or rate.

Front

What is the scale in a map?

Back

The scale is the ratio of a distance on the map to the actual distance it represents.

Front

What is the area of one face of a cube with a surface area of 150 square inches?

Back

The area of one face is 25 square inches.

Front

What does it mean for two quantities to be in proportion?

Back

Two quantities are in proportion if they can be expressed as a fraction that equals the same value.

Front

What is the process of distributing in algebra?

Back

Distributing involves multiplying each term inside parentheses by the term outside.

Front

What is an equivalent expression?

Back

An equivalent expression is one that has the same value for all values of the variable.

Front

What is the importance of surveying a random sample?

Back

Surveying a random sample helps ensure that the results are representative of the entire population.