Which of the following are square roots of the number below? check all that apply

81

a. 18

b. - (81) ^1/2

c. 9

d. 81^1/2

Question

Mathematics

Madelyn May

5 January, 21:43

Which of the following are square roots of the number below? check all that apply

81

a. 18

b. - (81) ^1/2

c. 9

d. 81^1/2

+5

Answers (1)

Know the Answer?

Cynthia · Answer 1

The answers are:

b. - (81) ^1/2

c. 9

d. 81^1/2

√a = - a^1/2 ⇒ √81 = - 81^1/2

√a = a^1/2 ⇒ √81 = 81^1/2

√81 = √9²

√a² = a ⇒ √9² = 9

√a² = - a ⇒ √9² = - 9

Which of the following are square roots of the number below? check all that apply81a. 18b. - (81) ^1/2c. 9d. 81^1/2

Which of the following are square roots of the number below? check all that apply

81

a. 18

b. - (81) ^1/2

c. 9

d. 81^1/2