A Rectangle Is 6 Inches Longer Than It Is Wide

question 111

Multiple Choice

A rectangle is 6 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:

Macula Lutea

A small, yellowish central area of the retina that is rich in cones and where visual acuity is highest.

Fovea Centralis

A small depression in the retina where visual acuity is highest.

Optic Disk

The spot in the eye where the optic nerve meets the retina, sometimes referred to as the blind spot.

Retina

A thin layer of tissue located at the back of the eye, containing cells sensitive to light that trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.