113k views
1 vote
Determine if each root is a rational or irrational number. Explain your reasoning. a.√36 b.√78

1 Answer

6 votes

Answer:

a) rational

b) irrational

Explanation:

a) 36 = 6²

So sqrt(36) = 6

b) 72 = 2 × 36

sqrt(72) = sqrt(2) × sqrt(36)

Since 2 is not a perfect square, sqrt(72) is irrational

User Ishan Fernando
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories