Respuesta :
Answer:
14.3178210633
Step-by-step explanation:
distance formula, d= sq root of ((x2-x1)^2+(y2-y1)^2)
Answer:
ab = [tex]\sqrt{42}[/tex].
Step-by-step explanation:
Given : A= (4,-5) and b=(7,9).
To find : what is the length of ab.
Solution : We have given that A= (4,-5) and b=(7,9).
Distance formula : [tex]\sqrt{(x_{2}-x_{1}(y_{2} -y_{1})}[/tex].
Here, [tex]x_{1} =4[/tex]
[tex]x_{2} =7[/tex]
[tex]y_{1} =-5[/tex]
[tex]y_{2} =9[/tex].
Then [tex]\sqrt{(7-4)(9-(-5))}[/tex].
ab = [tex]\sqrt{(3)(14)}[/tex].
ab = [tex]\sqrt{42}[/tex].
Therefore, ab = [tex]\sqrt{42}[/tex].
