On a state map, a cartographer plots texmath at coordinates (2, 2) and lonestar village at coordinates (9, 16). how far is it from texmath to lonestar village? √21 15 5√7 7√5

The distance between two points can be calculated through the equation,
 
                              d = sqrt ((x₂ - x₁)² + (y₂ - y₁)²)

Substituting the known values,
                              d = sqrt (16 - 2)² + (9 - 2)²)
Simplifying,
                              d = sqrt (245) = 7 sqrt (5)

The answer is the last choice. 

Try a or d, hope that