3 years ago

Solve this equation for x. Round your answer to

1 answer:

6 0

Answer:

dcvdvdv

Step-by-step explanation:

dvdfvdcvf

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Ivahew [28]

$9\cos(2t)=6\implies\cos(2t)=\dfrac23$

Using the fact that cos is 2π-periodic, we have

$\cos(2t)=\dfrac23\implies2t=\cos^{-1}\left(\dfrac23\right)+2n\pi$

That is, $\cos(\theta+2n\pi)=\cos\theta$ for any $\theta$ and integer $n$ .

$\implies t=\dfrac12\cos^{-1}\left(\dfrac23\right)+n\pi$

We get 2 solutions in the interval [0, 2π] for $n=0$ and $n=1$ ,

$t=\dfrac12\cos^{-1}\left(\dfrac23\right)\text{ and }t=\dfrac12\cos^{-1}\left(\dfrac23\right)+\pi$

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2 years ago

photoshop1234 [79]

Answer:

$2.39

Step-by-step explanation:

to find the cost of 1 pound , divide the cost of 4 pounds by 4

$9.56 ÷ 4 = $2.39

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1 year ago

Aleonysh [2.5K]

Answer:

time in weeks

Step-by-step explanation:

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2 years ago

pshichka [43]

I believe that it is 24.99 but I'm not too sure. Anyways I hope I helped!

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2 years ago

jek_recluse [69]

Where’s the diagram...?

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3 years ago