Simplify the Expression $7 ^ { 3 } - ( - 3 ) ^ { 2 }$

question 138

Multiple Choice

Simplify the expression.
- $7 ^ { 3 } - ( - 3 ) ^ { 2 }$

• A) 27
• B) 12
• C) 334
• D) 352

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Definitions:

Bandwidth

The range of frequencies within a given band, particularly that used for transmitting a signal.

Tolerance

The amount of variation from a standard value that is permissible.

Impedance

The total opposition a circuit presents to the flow of alternating current, combining both resistance and reactance.

Low-pass Filters

Electronic circuits that pass signals with a frequency lower than a certain cutoff frequency and attenuate signals with frequencies higher than the cutoff frequency.