Answer:
It is (8, 2)
Step-by-step explanation:
The lines make it positive
Answer:
= 2 sqrt(17)
or C if you're taking it on edge.
Step-by-step explanation:
To find the magnitude of v using the dot product
|v| = sqrt(v1*v1 + v2*v2)
= sqrt( -8*-8 + 2*2)
= sqrt(64+ 4)
= sqrt(68)
= sqrt(4*17)
= sqrt(4) sqrt(17)
= 2 sqrt(17)
