Answer:
17.5
Step-by-step explanation:
Use the distance formula, which is just an application of the pythagoreon theorem: [tex]d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}[/tex]
where (x1,y1) and (x2,y2) are coordinates.
Plug in the numbers:
[tex]d=\sqrt{\left(10-\left(-5\right)\right)^2+\left(\left(-6\right)-3\right)^2}[/tex]
[tex]d=3\sqrt{34}[/tex] = 17.5
Hope this helps.