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Anastaziya [24]
3 years ago
15

Which is the value of x that makes the given equation true? Show all the steps to prove your answer is correct.

Mathematics
1 answer:
Molodets [167]3 years ago
5 0
The correct answer is x= -2
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9k/65 = 1316/845<br> find k and show work
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Answer:

k= 1316/117

Step-by-step explanation:

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4:2 or when simplified 2:1
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Ivanna jogged for 35 minutes.
Gennadij [26K]
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Ivanna started jogging at 7:20
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Please help ASAP!
Kruka [31]

First, recall that

\sin(-\theta)=-\sin\theta

So if \sin(-\theta)=\dfrac15, then \sin\theta=-\dfrac15.

Second,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}

We know that \tan\theta>0 and \sin\theta, which means we should also have \cos\theta.

Third,

\sin^2\theta+\cos^2\theta=1\implies\cos\theta=\pm\sqrt{1-\sin^2\theta}

but as we've already shown, we need to have \cos\theta, so we pick the negative root.

Finally,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}\iff\dfrac6{\sqrt{12}}=\dfrac{-\frac15}{\cos\theta}\implies\cos\theta=-\dfrac1{5\sqrt3}

Unfortunately, none of the given answers match, so perhaps I've misunderstood one of the given conditions... In any case, this answer should tell you everything you need to know to find the right solution from the given options.

6 0
3 years ago
What is the value of x -3(-x)-6=-3x+10
Romashka [77]
-3(-x)-6=-3x+10
-3 -3
(-x)-6=-3x+7
-6 -6
(-x)=-3x+1

i only got this far!! im so sorry!!
7 0
3 years ago
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