Find an Expression for the Perimeter of the Figure $4 x ^ { 2 } + 8 x + 21$

question 49

Multiple Choice

Find an expression for the perimeter of the figure.
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• A) \(4 x ^ { 2 } + 8 x + 21\)
• B) \(3 x ^ { 2 } + 8 x + 18\)
• C) \(3 x ^ { 2 } + 9 x + 21\)
• D) \(4 x ^ { 2 } + 9 x + 21\)

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Definitions:

Pitch

A tone's perceived frequency.

Frequency

The rate at which something occurs or is repeated over a particular period of time or in a given sample.

Sound Wave

A wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.

Binocular Cues

Are visual information taken in by two eyes that enable a sense of depth perception, such as stereopsis, convergence, and disparity.