Add Simplify, If Possible $$\frac { 2 } { 15 x } + \frac { 5 } { 15 x }$$

question 43

Multiple Choice

Add. Simplify, if possible.
- $$\frac { 2 } { 15 x } + \frac { 5 } { 15 x }$$

• A) \(\frac { 7 } { 15 x }\)
• B) \(\frac { 7 } { 30 x }\)
• C) \(\frac { 15 x } { 7 }\)
• D) 1

---

Definitions:

Mean Absolute Deviation

The average of the absolute differences between each data point and the mean of the data set.

Root Mean Square Error

A measure of the differences between values predicted by a model and the values actually observed, expressed as the square root of the mean of these differences squared.

Seasonal Effect

A pattern observed in time-series data where changes occur at regular intervals due to seasonal factors.

Delphi Method

A structured communication technique, originally developed as a systematic, interactive forecasting method which relies on a panel of experts.