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3 years ago

13

___,36 ,108 ,324 ,972

1 answer:

hjlf3 years ago

3 0

12

First figure out of it is a arithmetic or geometric sequence, in this case it is a geometric sequence because you have to multiply, not add to find the next number.

Divide one number, I'll pick 324 by the number before it, 108, you get three.

Now divide 36 by 3, you get 12.

To check, multiply 12 by 3, you get 36, multiply that by 3, you get 108, and so on and so forth.

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Vadim26 [7]

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4 years ago

Please help me for the love of God if i fail I have to repeat the class

Elena-2011 [213]

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$x$ is in quadrant II, so $\sin x>0$ .

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$\sin^2\alpha+\cos^2\alpha=1$

Then with the conditions determined above, we get

$\cos\theta=\sqrt{1-\left(\dfrac45\right)^2}=\dfrac35$

and

$\sin x=\sqrt{1-\left(-\dfrac5{13}\right)^2}=\dfrac{12}{13}$

Now recall the compound angle formulas:

$\sin(\alpha\pm\beta)=\sin\alpha\cos\beta\pm\cos\alpha\sin\beta$

$\cos(\alpha\pm\beta)=\cos\alpha\cos\beta\mp\sin\alpha\sin\beta$

$\sin2\alpha=2\sin\alpha\cos\alpha$

$\cos2\alpha=\cos^2\alpha-\sin^2\alpha$

as well as the definition of tangent:

$\tan\alpha=\dfrac{\sin\alpha}{\cos\alpha}$

Then

1. $\sin(\theta+x)=\sin\theta\cos x+\cos\theta\sin x=\dfrac{16}{65}$

2. $\cos(\theta-x)=\cos\theta\cos x+\sin\theta\sin x=\dfrac{33}{65}$

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8. $\sin3\theta=\sin(\theta+2\theta)=\dfrac{44}{125}$

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4 years ago

Answer please with the work thank you. Who ever answers geta the brainlest answer!

vodomira [7]

Answer:

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Step-by-step explanation:

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3 years ago

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vlabodo [156]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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Sergio [31]

Answer:

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Step-by-step explanation:

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3 3 3

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3 3 3

y = <u>x </u> + <u>2 </u> replace y with f ^ -1(x)

<em> </em> 3 3

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3 3

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3 years ago