Multiply. (-4r - 9)²

question 26

Multiple Choice

Multiply. (-4r - 9) ²

• A) 16r² + 72r + 81
• B) -4r² + 72r + 81
• C) 16r² + 81
• D) 16r² + 36r + 81

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Definitions:

Standard Deviation

A metric indicating the degree of spread or diversity among values in a dataset.

Mean

The average of a set of numbers, calculated by dividing the sum of all values by the total number of values.

Standard Normal Curve

A type of normal distribution that has a mean of 0 and a standard deviation of 1, represented graphically as a bell-shaped curve.

Area

A measure of the extent of a surface or shape, expressed in square units.