Respuesta :

Answer:

2√17

Step-by-step explanation:

V = (-8, 2)

|v| = √((-8)^2 + 2^2)

= √(64 + 4)

= √68

= √4* √17

= 2√17

wegnerkolmp2741o

Answer:

  = 2 sqrt(17)

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)