Question

Q1

Sarah thinks of a positive number. She calculates that the square of the number is 256.
What is the square root of the number?
(Also plz explain how u get the answer)

Answer 1

4

Explanation:

The square root of the number is 4.

because she is thinking number 16.

She is thinking of √256;

then the square root of √256 is being asked.

√(√256) = √ 16 = 4

another way of answering the question:

let x be the number she is thinking

x² = 256

x = √256

x = 16

then square root of 16 is 4.