# What is the distance between (5,-18) and (-20,-9)?

Oct 9, 2017

Here is the solution

#### Explanation:

$z = \sqrt{{\left(5 - \left(- 20\right)\right)}^{2} + {\left(- 18 - \left(- 9\right)\right)}^{2}}$

$z = \sqrt{{25}^{2} + {\left(- 9\right)}^{2}}$

$z = \sqrt{625 + 81}$

$z = 26.57$