Math Test 2

Question 1

How can you tell if a number is rational?

Answer 1

A number can be shown to be rational by writing it in a form A/B where A and B are integers, and B is not zero. If the number can’t be written in this form, it is not rational.

Question 2

How can you tell if a number is irrational?

Answer 2

A number can be shown to be irrational if it is not terminating, repeating or it cannot be turned into a fraction.

Question 3

What are the steps to turn a decimal into a fraction?

Answer 3

X=OGE

Multiply by a power of 10

Subtract by the OGE

Solve and simplify

Divide and ‘abc’ button on calculator to check

Question 4

How to find the square root?

Answer 4

Find the two numbers closest to them, then put it on a number line. Figure out, which is closer and make an estimate to the square root based off that.

Question 5

m2=14

Answer 5

m= square root of 14, positive or negative

Question 6

How to find the area of one face of a cube?

Answer 6

Cubic root of the volume and multiply to find the area.

Example: 125=5
5*5=25