Answer:
10
Step-by-step explanation:
[tex]D=\sqrt{{(x_{2}-x_{1})}^{2} +{(y_{2}-y_{1})}^{2}[/tex]
[tex]D=\sqrt{{(5-(-5))}^{2} +{(3-3)}^{2}[/tex]
[tex]D=\sqrt{{(5+5)}^{2} +{(0)}^{2}[/tex]
[tex]D=\sqrt{{(10)}^{2} +0[/tex]
[tex]D=\sqrt{{100[/tex]
[tex]D=10[/tex]