Add Simplify, If Possible $$\frac { 4 } { x + y } + \frac { 3 } { y + x }$$

question 55

Multiple Choice

Add. Simplify, if possible.
- $$\frac { 4 } { x + y } + \frac { 3 } { y + x }$$

• A) \(\frac { 1 } { x + y }\)
• B) \(\frac { 7 } { 2 x + 2 y }\)
• C) \(\frac { 4 } { x } + \frac { 3 } { y }\)
• D) \(\frac { 7 } { x + y }\)

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Definitions:

Population Averages

The mean value of a particular characteristic in a population, representing the central tendency of that characteristic across the entire population.

Alternative Hypothesis

The hypothesis that proposes a specific relationship between variables, tested against the null hypothesis in statistical analysis.

One-sample Z-test

A statistical test used to determine whether the mean of a sample significantly differs from a known or hypothesized population mean.

Possible Means

The various average values that could be calculated from different subsets or populations of data.