Evaluate the Radical Expression If It Is a Real Number $$\sqrt [ 4 ] { - \frac { 1 } { 81 } }$$

question 220

Multiple Choice

Evaluate the radical expression if it is a real number. Use a calculator to approximate irrational numbers to the nearest
hundredth. If the expression is not a real number, so state.
- $$\sqrt [ 4 ] { - \frac { 1 } { 81 } }$$

• A) \(\frac { 1 } { 3 }\)
• B)19
• C) \(- \frac { 1 } { 3 }\)
• D)not a real number

---

Definitions:

Cortisol

A steroid hormone produced by the adrenal glands, which is often released in response to stress and has various roles in the body including regulating metabolism.

Aerobic Exercise

Physical exercise that improves oxygen consumption by the body, enhancing cardiovascular health and endurance.

Serotonin Activity

Refers to the action of the neurotransmitter serotonin in the brain, affecting mood, emotion, and sleep.

Oxytocin Levels

Oxytocin levels refer to the concentration of oxytocin, a hormone associated with social bonding, trust, and affection.