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fomenos
3 years ago
10

8% of the rides in the park are water rides. if there are 4 water rides how many rides are there in total

Mathematics
1 answer:
viva [34]3 years ago
7 0
8/100=4/n 400=8n ___ ____ 8n. 8n 50=n
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Work out the volume of this sphere?
Gekata [30.6K]

Step-by-step explanation:

v =  \frac{4}{3} \pi {( \frac{19}{2} )}^{3}  \\ v =  \frac{4}{3} \pi \: 857.375 = 3591.364  \\ = 3591.4 \:  {cm}^{3}

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3 years ago
The equation V=13πr2h relates the volume V, the radius r, and the height h of a cone. Write h in terms of V and r.
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V= \frac{1}{3} \pi r^2h \\  \\ 3V= \pi r^2h \\  \\ h= \cfrac{3V}{\pi r^2}
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HURRRRRRRRYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
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Answer:

41*

Step-by-step explanation:

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Cone B is the image of cone A after dilation by a scale factor of \frac{1}{2}
Bogdan [553]

The surface area of cone B is 10 km², and Cone B is the image of cone A after dilation by a scale factor of 1/2

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Cone B is the image of cone A after dilation by a scale factor of 1/2, hence:

Surface area of cone B = 40 km² * (1/2)² = 10 km²

The surface area of cone B is 10 km², and Cone B is the image of cone A after dilation by a scale factor of 1/2

Find out more on equation at: brainly.com/question/2972832

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4 0
2 years ago
Find the expansion of cos x about the point x=0
ycow [4]

Answer:

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Step-by-step explanation:

We use Taylor series expansion to answer this question.

We have to find the expansion of cos x at x = 0

f(x) = cos x, f'(x) = -sin x, f''(x) = -cos x, f'''(x) = sin x, f''''(x) = cos x

Now we evaluate them at x = 0.

f(0) = 1, f'(0) = 0, f''(0) = -1, f'''(0) = 0, f''''(0) = 1

Now, by Taylor series expansion we have

f(x) = f(a) + f'(a)(x-a) + \frac{f''(a)(x-a)^2}{2!} + \frac{f'''(a)(x-a)^3}{3!} + \frac{f''''(a)(x-a)^4}{4!} + ...

Putting a = 0 and all the values from above in the expansion, we get,

Cos x = 1 - \frac{x^2}{2!} + \frac{x^4}{4!} - \frac{x^6}{1!} + ...

8 0
3 years ago
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