Subtract the Rational Expressions $\frac { n - 4 } { 9 } - \frac { n - 7 } { 12 }$

question 82

Multiple Choice

Subtract the rational expressions. Be sure to express your answer in simplest form. $\frac { n - 4 } { 9 } - \frac { n - 7 } { 12 }$

• A) \(\frac { 3 n + 5 } { 108 }\)
• B) \(\frac { 21 n - 37 } { 108 }\)
• C) \(\frac { n + 5 } { 36 }\)
• D) \(\frac { n - 37 } { 36 }\)

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Definitions:

Coefficient of Determination

This statistic measures the proportion of the variance in the dependent variable that is predictable from the independent variable(s) in a regression model, often represented as R².

Total Variation

The sum of squared differences between observed values and their overall mean in a dataset.

Predictor Variable

A variable used in statistical modeling to predict or explain changes in the dependent variable.

Response Variable

A variable that measures the outcome of a study or experiment; it is the effect or result that is influenced by other variables.