### Home > CCAA8 > Chapter 10 Unit 11 > Lesson CCA: 10.2.5 > Problem10-82

10-82.

Identify each sum or product as a rational number or an irrational number.

Refer to the Math Notes in the lesson to help you with defining rational and irrational numbers.

1.   $\sqrt{9}+\frac{5}{17}$

What is the square root of $9$? Can you simplify the answer to help you determine if it is irrational?

Rational

1.   $\frac{2}{3}+\pi$

Is $\pi$ a rational number that terminates or repeats?

Irrational

1.   $5·\sqrt{11}$

Is the $\sqrt{11}$ a rational number that terminates or repeats?

Irrational

1.   $\sqrt{12}·\sqrt{3}$