Answer
$\approx 17.21$ units
Work Step by Step
We are given the points:
$(9.5,-2.6)$
$(-3.9,8.2)$
Determine the distance between two points $(x_1,y_1),(x_2,y_2)$ using the formula:
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
$d=\sqrt{(-3.9-9.5)^2+[8.2-(-2.6)]^2}$
$=\sqrt{(-13.4)^2+(10.8)^2}$
$=\sqrt{296.2}$
$=\approx 17.21$