Question

Which of the following are square roots of the number below? Check all thatapply.169A. 13 B. -1691/2C. 17D. -13 E. 1691/2 F. 26

Answer 1

A square root of a number is a value that, when multiplied by itself, gives the number. Specifically we are looking for integer results, therefore:

`\begin{gathered} \sqrt[]{169}=\pm13 \\ since \\ 13\cdot13=169 \\ -13\cdot-13=169 \end{gathered}`

Answers:

A. 13

D. -13