Let u = 2i + 3j, v=-i, and w = 5i – 6j. What is the magnitude of 2(u – y + w)? O 10.0

O 13.4

O 17.1

O 21.6

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: none of these answers are correct only the second half is

step-by-step explanation:

the square root of 16 is 4.

4*4 = 16