Please help please please please helppp

Mathematics

1 answer:

ch4aika [34]2 years ago

6 0

Answer:

m∠3 = 73°

Step-by-step explanation:

Vertical angles are equivalent in measure. Complement angles add up to 90°, so subtract 17° from 90° to get your answer.

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Please help with this question

natita [175]

Answer:

$12\sin{(2\theta)}\cos{(\theta)}$

Step-by-step explanation:

The appropriate trig identity is ...

$\sin{a}+\sin{b}=2\sin{\left(\dfrac{a+b}{2}\right)}\cos{\left(\dfrac{a-b}{2}\right)}$

Here, you have a scale factor of 6 and a=3θ, b=θ. Filling in these values gives ...

$6\sin{3\theta}+6\sin{\theta}=12\sin{\left(\dfrac{3\theta+\theta}{2}\right)}\cos{\left(\dfrac{3\theta-\theta}{2}\right)}\\\\=12\sin{(2\theta)}\cos{(\theta)}$

8 0

2 years ago

Salinity is a measure of the salt content of a body of water. One researcher measures the salinity of the Indian Ocean as 3.2%.

frosja888 [35]

Divide each percentage to find a multiplier:

34/3.2 = 10.625

The Dead Sea is 10.625 times saltier than the Indian Ocean.

So if Indian Ocean bucket = 56 grams of salt

Multiply that by our multiplier.

56 * 10.625 = 595 grams

The answer is 595 grams

6 0

2 years ago

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Evaluate −m2n+m2 when m=−4.

fgiga [73]

Answer:

Does this answer your question − 16 n + 16

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2 years ago

42 deliveries in 3 hours = deliveries per hour

DochEvi [55]

Answer: