Simplify by Rationalizing the Denominator $\frac { \sqrt { x } - 3 } { \sqrt { x } + 3 }$

question 159

Multiple Choice

Simplify by rationalizing the denominator.
- $\frac { \sqrt { x } - 3 } { \sqrt { x } + 3 }$

• A) \(- 6 \sqrt { x }\)
• B) \(\frac { x - 6 \sqrt { x } + 9 } { x - 9 }\)
• C) \(- 1\)
• D) \(\frac { x + 9 } { x - 9 }\)

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Definitions:

Research Hypotheses

Formal statements predicting a significant relationship or difference between two or more variables in a study.

Analysis of Variance

A statistical technique that compares the averages of three or more groups to determine if at least one significantly deviates from the rest.

ANOVA

Short for "Analysis of Variance," a statistical method used to compare the means of three or more samples, testing the hypothesis that they are equal.

Total Sample Size

The aggregate number of individual observations or data points collected in a study.