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soldi70 [24.7K]
2 years ago
11

Please help me answer this question!! will give brainliest and 5 star rating!!

Mathematics
2 answers:
romanna [79]2 years ago
5 0
Yo where is the question
Tasya [4]2 years ago
3 0

Excuse me, there’s no questions?

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PLEASE HELP IM DESPERATE WILL GIVE BRAINLIEST ONLY ANSWER IF YOU ARE HELPING
VARVARA [1.3K]

Answer:

48

Step-by-step explanation:

u • w

= (i + 6j ) • (9i - 2j )

= (1 × 9 ) + (6 × - 2 )

= 9 + (- 12)

= 9 - 12

= - 3

v • w

= (5i - 3j ) • (9i - 2j )

= (5 × 9) + (- 3 × - 2)

= 45 + 6

= 51

Then

u • w + v • w

= - 3 + 51

= 48

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