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2 years ago

I'm literally the worst at math. here's my problem: 10 (2y+2) - y = = 2(8y-8)

Mathematics

2 answers:

Trava [24]2 years ago

6 0

The answer is y = 12

kipiarov [429]2 years ago

3 0

Hope this helped pls give me the brainliest :))

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Cos 4θ − cos 2θ = sin θ

hichkok12 [17]

$cos(4\theta) - cos(2\theta) = sin(\theta)$
$-2sin(\frac{4\theta + 2\theta}{2})sin(\frac{4\theta - 2\theta}{2}) = sin(\theta)$
$-2sin(\frac{6\theta}{2}sin\frac{2\theta}{2}) = sin(\theta)$
$-2sin(3\theta)sin(\theta) = sin(\theta)$
$\frac{-2sin(3\theta)sin(\theta)}{-2sin(\theta)} = \frac{sin(\theta)}{-2sin(\theta)}$
$sin(3\theta) = -\frac{1}{2}$
$sin^{-1}[sin(3\theta)] = sin^{-1}(-\frac{1}{2})$
$3\theta = -30$
$\frac{3\theta}{3} = \frac{-30}{3}$
$\theta = -10$

7 0

2 years ago

DONT COMMENT IF YOU DON KNOW

tankabanditka [31]

Answer:

okay so im not sure which is being round so i'll do both

if you are going to round the miles and gallons:

278.2 to 278 because the decimal is below 0.5

19.6 to 20 because the decimal is above 0.5

278/20 = 13.9 which you would round to 14 because the decimal is above 0.5

if you are only going to round the answer:

278.2/19.6 = 14.193877551 which you would round to 14 because the decimal is below 0.5

so regardless of what you do, <u> your answer will be 14</u>

3 0

2 years ago

What is the equation of this trend line? Please help ASAP!

Kruka [31]

8+2x is the answer to to this thanks so much

7 0

2 years ago

Read 2 more answers

I would appreciate some help on this if anyone could answer it

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

yea

7 0

2 years ago

Hey! please help i’ll give brainliest! if it lets me:)

lozanna [386]

Answer:

south since its the opposite

5 0

2 years ago