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3 years ago

6 (n-3) - 2n = 10 Pleasee help

Mathematics

1 answer:

professor190 [17]3 years ago

3 0

Answer: n = 7

(this website may help: https://www.symbolab.com/)

Step-by-step explanation:

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Find the critical numbers of the function. (Enter your answers as a comma-separated list. Use n to denote any arbitrary integer

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$f(\theta)=10\cos\theta+5\sin^2\theta$

then the derivative is

$f'(\theta)=-10\sin\theta+10\sin\theta\cos\theta$

Critical points occur where $f'(\theta)=0$ . This happens for

$-10\sin\theta+10\sin\theta\cos\theta=0$

$-10\sin\theta(1-\cos\theta)=0$

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In the first case, we find

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3 years ago

Please help.. 10 points

Leokris [45]

Answer:

z = 55.15432893

x = 59.61543424

y = 22.5166605

Step-by-step explanation:

To find length "z" you will have to use SOHCAHTOA.

Labelling the triangle will show us that the side marked "z" is the hyp and the side marked 39 is the opp.

sin 45 = $\frac{39}{z}$

z sin 45 = 39

z = $\frac{39}{sin45}$

z = 55.15432893

Using Pythagoras' theorem, you can find that the adj = 39

In the other triangles POV, the adj is actually the opp.

Therefore, use tangent to find y.

tan 60 = $\frac{39}{adj}$

y tan 60 = 39

y = $\frac{39}{tan60}$

y = 22.5166605

Use Pythagoras's Theorem to find x.

$23^{2} + 55^{2} = x^{2}\\\sqrt{23^{2} + 55^{2}} = x\\59.61543424=x$

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2 years ago