Evaluate the Following Expression If It Represents a Real Number

question 222

Multiple Choice

Evaluate the following expression if it represents a real number. ​ ​

• A)-81
• B)-27
• E)not a real number

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Definitions:

Alcohol

An organic compound characterized by one or more hydroxyl (–OH) groups attached to a carbon atom, used in a wide array of applications from solvents to beverages.

IR Spectroscopy

A technique used to identify molecular structures through the absorption of infrared light, which causes molecular vibrations.

Compounds

Substances formed from the chemical combination of two or more elements, characterized by specific molecular compositions and properties.

C=O Stretch

A vibrational mode in infrared spectroscopy, indicating the presence of a carbonyl group (\(C=O\)) in the molecule, characterized by a strong, distinctive absorption band.