Can someone help me please !!!

Answer:
5
Step-by-step explanation:
1) use the specific formula of the distance:
[tex]\sqrt{(x2 - x1)^2 + (y2-y1)^2[/tex] where x and y represents the coordinates of the point
2) substitute at the variables the given numbers:
[tex]\sqrt{(5-1)^2 + (-7-(-10)^2} = \sqrt{(5-1)^2 + (-7+10)^2} = \sqrt{16 + 9} = \sqrt{25} = 5[/tex]