Solve the Problem. -How Many Different 3-Letter Codes Are There If Only the If

question 201

Multiple Choice

Solve the problem.
-How many different 3-letter codes are there if only the letters A, B, C, D, E, F, G, H, and I can be used and no letter can be used more than once?

• A)504
• B)3
• C)729
• D)84

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Definitions:

Alzheimer's Disease

A progressive neurodegenerative disorder characterized by memory loss, cognitive impairment, and changes in behavior, associated with an accumulation of amyloid plaques and neurofibrillary tangles in the brain.

Rheumatoid Arthritis

A chronic inflammatory disorder affecting joints, including those in the hands and feet, characterized by painful swelling leading to bone erosion and joint deformity.

Naphthalene

An aromatic hydrocarbon composed of two fused benzene rings, commonly found in mothballs and used in the production of dyes and plastics.

Aromatic

A class of hydrocarbons that contain one or more benzene rings in their molecular structure, known for their stability and fragrant properties.