Answer :
We have the following coordinates given:
[tex]U=(11,9),S=(-12,-6)[/tex]And we want to find US so we can use the following formula:
[tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]And using this formula we got:
[tex]US=\sqrt{(11+12)^2+(9+6)^2}[/tex]And after solve we got:
[tex]US=\sqrt{529+225}=\sqrt{754}[/tex]and rounded to the nearest cent would be Us= 27.46