viga293077 viga293077

25-03-2021
Mathematics

contestada

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

10.0
13.4
17.1
21.6

Respuesta :

faisal4craft7 faisal4craft7

25-03-2021

2(u-v + w)

2u - 2v + 2w

(4i+3j) - (-2i) + (10i - 12j)

4i + 2i + 10i = 16i
3j - 0j -12j = -8j

16 - 8j

magnitude = √( 16²+(-8)² ) = 17.1

Answer Link

haleyloomis haleyloomis

21-04-2021

Answer:

C. 17.1

Step-by-step explanation:

edge

Answer Link

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