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kipiarov [429]
4 years ago
10

Pls help this is due very soon

Mathematics
2 answers:
loris [4]4 years ago
8 0

Answer:

669.87 cubic cm

Step-by-step explanation:

d = 16 \: cm \implies \: r = 8 \: cm \\ h = 10 \: cm \\ V_{cone} =  \frac{1}{3} \pi {r}^{2} h \\  \hspace{20  pt} =  \frac{1}{3}  \times 3.14 \times  {8}^{2}  \times 10 \\ \hspace{20  pt} =  \frac{1}{3}  \times 3.14 \times  64  \times 10 \\ \hspace{20  pt} =  \frac{1}{3}  \times 3.14 \times  640  \\   \hspace{20  pt} =  \frac{1}{3}  \times 2,009.6    \\  \hspace{20  pt} = 669.866667 \\  \huge \red{ \boxed{V_{cone} = 669.87  \:  {cm}^{3} }}\\

Viefleur [7K]4 years ago
7 0
10x16 = 160 cm

160x 3.14 = 502.4 cm

502.4 ≈ 500 cm

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Answer:

3x +12

Step-by-step explanation:

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3 years ago
What is the value of the correlation coefficient r of the data set?
enyata [817]

The correct option will be:  C) 0.84

<u><em>Explanation</em></u>

Formula for Correlation coefficient :

r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}

First, for each point(x, y), we need to calculate x², y² and xy .

Then, we will find sum all x, y, x², y² and xy, which gives us Σx, Σy, Σx², ∑y² and Σxy

<em>(Please refer to the attached image for the table )</em>

Here we got, ∑x = 44 , ∑y = 183 , ∑x² = 362 , ∑y² = 6575 and ∑xy = 1480

'n' is the total number of data set, which is 7 here.

So, plugging those values into the above formula..........

r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}\\ \\ r=\frac{7(1480)-(44)(183)}{\sqrt{[7(362)-(44)^2][7(6575)-(183)^2]}}\\ \\ r=\frac{10360-8052}{\sqrt{(598)(12536)}}\\ \\ r=\frac{2308}{\sqrt{7496528}}\\ \\ r=0.84

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4 0
3 years ago
Read 2 more answers
Julie is playing in a basketball tournament and scored 24 points in her first game. If she averages over 20 points for both game
Elis [28]
She needs to score at least 16 points in the second game to receive a trophy.
6 0
3 years ago
1. Avital counted 40 green cars and 20 silver cars in the parking lot. If the number of green cars stay the same, how many more
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8 0
3 years ago
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Gwar [14]

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Step-by-step explanation:

We are told that the two triangles are similar.  Thus, each side of the larger triangle is the same multiple of the corresponding side in the smaller triangle.

Thus, 12 = k(7.2), where k is the constant of proportionality.

Solving this for k, we get

k = 12/7.2 = 1  2/3

Thus, side m is 1  2/3 times 3, or  5/3 times 3, or just 5.

m = 5

8 0
4 years ago
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