A Rectangle Is 4 Inches Longer Than It Is Wide

question 171

Short Answer

A rectangle is 4 inches longer than it is wide. Let x = the width, P = the perimeter and A = the area of the rectangle. Write an equation that will give the perimeter P in terms of the width x of the rectangle.

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Definitions:

Electroencephalograph

A device used to record the electrical activity of the brain, used in the diagnosis of neurological conditions and in research.

Electrical Activity

The movements of electrons or current within a system, often measured in the body or brain to assess function.

REM Period

Rapid Eye Movement (REM) period refers to a phase of sleep characterized by rapid movements of the eyes, vivid dreams, and increased brain activity.

Sleep

A naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity, and inhibition of nearly all voluntary muscles during rapid eye movement (REM) stages.