### Home > CCA > Chapter 10 > Lesson 10.2.5 > Problem 10-82

10-82.

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

+ + *π*5 ·

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Refer to the Math Notes box in this lesson (shown below) to help you withdefining rational and irrational numbers.

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

Rational

Is π a rational number?

Irrational

Use the same method as part (a).

Irrational

Simplify before answering.

Rational