Perform the Operation and Simplify $( a - 15 ) ^ { 2 }$

question 133

Multiple Choice

Perform the operation and simplify. $( a - 15 ) ^ { 2 }$

• A) \(\quad a ^ { 2 } + 30 a + 225\)
• B) \(\quad a ^ { 2 } - 15 a + 225\)
• C) \(\quad a ^ { 2 } - 225\)
• D) \(\quad a ^ { 2 } - 30 a + 225\)
• E) \(\quad a ^ { 2 } + 225\)

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Definitions:

Z-Scores

Standardized scores that indicate the number of standard deviations an element is from the mean of its distribution.

Standard Deviations

A measure that quantifies the amount of dispersion or variation of a set of data values from the mean.

Z-Scores

Standardized scores that indicate how many standard deviations an element is from the mean of its data set.

Standard Deviations

A measure of the amount of variation or dispersion of a set of values, indicating how much the values in the set depart from the mean.