The Area of a Circle with Radius Is Given

question 114

Multiple Choice

The area of a circle with radius is given by the power function . What happens to the area of the circle when the radius is multiplied by 3?

• A) The area increases by a factor of 9.
• B) The area is also multiplied by 3.
• C) The area increases by .
• D) Not enough information.
• E) The area increases by .

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Definitions:

Sleep Stage

A period during sleep characterized by specific brain activity patterns and physiological changes.

Non-REM Sleep

A state of sleep that includes all sleep stages except for REM (rapid eye movement) sleep, characterized by slower brain waves and reduced brain activity.

Night Terrors

A sleep disorder causing feelings of panic or dread, typically occurring in children during non-REM sleep.

Rapid Eye Movements

Quick, simultaneous movements of both eyes in the same direction, which occur in phases of sleep associated with vivid dreaming.