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2 years ago

PLEASE HELP IM DESPERATE WILL GIVE BRAINLIEST ONLY ANSWER IF YOU ARE HELPING

Mathematics

1 answer:

VARVARA [1.3K]2 years ago

7 0

Answer:

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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Answer:

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Step-by-step explanation:

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2 years ago

Sin tita= 0.6892.find the value Of tita correct to two decimal places<br><br>

Anvisha [2.4K]

Answer:

$\theta \approx 6.28n + 2.38, \quad n \in \mathbb{Z}$

$\theta \approx 6.28n + 0.76, \quad n \in \mathbb{Z}$

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$\theta \approx 2.38$

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Step-by-step explanation:

$\sin(\theta)=0.6892$

We have:

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$\theta \approx 6.28n + 0.76, \quad n \in \mathbb{Z}$

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