Perform the Operation $( 7 + \sqrt { - 16 } ) + ( 6 + \sqrt { - 25 } )$

question 316

Multiple Choice

Perform the operation. Write the answer in a+bi form. $( 7 + \sqrt { - 16 } ) + ( 6 + \sqrt { - 25 } )$

• A) \(12 + 7 i\)
• B) \(11 + 6 i\)
• C) \(15 + 10 i\)
• D) \(13 + 9 i\)
• E) \(14 + 8 i\)

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Definitions:

Absolute Threshold

The smallest level of stimulus that can be detected by a sense, such as the lightest touch or faintest sound perceivable.

Hearing

The physiological process by which sound waves are translated into electrical signals that the brain interprets as sound.

Decibels

A unit of measurement for the intensity of sound, representing the ratio between two quantities and often used to describe noise levels.

Air Pressure Waves

Variations in the pressure of air that are primarily responsible for the propagation of sound.