Find the Square Root If It Is a Real Number $\sqrt { \frac { 1 } { 81 } }$

question 7

Multiple Choice

Find the square root if it is a real number, or state that the expression is not a real number.
- $\sqrt { \frac { 1 } { 81 } }$

• A) 9
• B) \(\frac { 1 } { 9 }\)
• C) \(\frac { 1 } { 6561 }\)
• D) 81

---

Definitions:

Exophthalmos

Note: Exophthalmus is already in the glossary as exophthalmia. It can be spelled exophthalmos, exophthalmus or exophthalmia.

Diabetes

A chronic condition characterized by high levels of sugar in the blood due to the body’s inability to produce or effectively use insulin.

Graves' Disease

A condition where the immune system mistakenly attacks the thyroid gland, resulting in its excessive activity and leading to hyperthyroidism.

Circulatory System

The body's system responsible for the movement of blood, nutrients, oxygen, carbon dioxide, and hormones to and from cells throughout the body to provide nourishment, help in fighting diseases, maintain a stable internal environment, and remove waste.