Answer:
8.1
Step-by-step explanation:
To calculate the distance d use the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 3, 5) and (x₂, y₂ ) = (1, - 2)
AB = [tex]\sqrt{(1+3)^2+(-2-5)^2}[/tex]
= [tex]\sqrt{4^2+(-7)^2}[/tex]
= [tex]\sqrt{16+49}[/tex]
= [tex]\sqrt{65}[/tex] ≈ 8.1 ( to 1 dec. place )
