please i really y need help it’s due in 4 mins
Answer:
DV=3√10
Step-by-step explanation:
D(-1,7) and V(8,4)
to determine the length you use the distance formula
d =√(x2-x1)²+ (y2-y1)²
in thhis case
d=√(-1-8)²+(7-4)²
d=√81 +9
d=√90
d= 3√10