Use a Calculator to Give the Real Number Value $$y = \cos ^ { - 1 } ( - 0.9397 )$$

question 24

Multiple Choice

Use a calculator to give the real number value. Round the answer to 7 decimal places.
- $$y = \cos ^ { - 1 } ( - 0.9397 )$$

• A) \(- 0.3492063\)
• B) \(2.7412723\)
• C) \(2.7925484\)
• D) \(2.8285740\)

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Definitions:

Sound Quality

An attribute of auditory perception that allows the differentiation of sounds that have the same pitch and loudness.

Timbre

The quality of a sound that distinguishes it from other sounds of the same pitch and volume.

Complexity

Refers to the state or quality of being intricate or complicated, often used to describe systems with multiple interconnected components.

Speech Sounds

The distinct auditory units or phonemes produced by the human vocal apparatus that constitute the basic building blocks of spoken language.