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Eva8 [605]
3 years ago
8

Please help due in 10 minutes

Mathematics
2 answers:
Maurinko [17]3 years ago
6 0
B-I hole this helps like if I’m right
Sever21 [200]3 years ago
6 0

Answer:  The number is 14   ,  look into the steps for more explanations.

Step-by-step explanation:

Twice the sum of a number and seven  is three times the number .  

in this case we will represent that number  by the variable x.

The sum of x and 7  is      x+7  

Twice that will be     2(x +7)  

That has to equation  three times the number which will make it

2(x+7) = 3x    Now solve for x to find the number  by distributing

2x + 14 = 3x           Subtract 2x from both sides

 2x          -2x

 14 = 1x              Divide both sides by 1

x = 14

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A graphing calculator is recommended. A grain silo consists of a cylindrical main section and a hemispherical roof. If the total
eimsori [14]

Answer:

11.28 ft

Step-by-step explanation:

The volume of a cylinder can be written as;

Volume V1 = πr^2 h

The volume of an hemisphere can be written as;

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The total volume of the silo is;

V = V1 + V2

V = πr^2 h + (2/3)πr^3

Given;

Volume of silo V= 15000 ft^3

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Substituting the values;

V = πr^2 h + (2/3)πr^3

15000 = 30πr^2 + (2/3)πr^3

15000/π = 30r^2 + (2/3)r^3

2r^3 + 90r^2 - (15000×3/π) = 0

Solving the equation, we have;

r = 11.28 ft or -15.61 ft or -40.67 ft

Since the radius cannot be negative;

Radius r = 11.28 ft

3 0
3 years ago
Pls help being timed
gogolik [260]

...Answer is C..

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siniylev [52]
1m=100cm\to1cm=0.01m\\1h=60min\to1min=\frac{1}{60}h\\========================\\\\4.6\times10^8\ cm/min=4.6\times10^8\times\frac{0.01m}{\frac{1}{60}h}=4.6\times10^8\times0.6\ m/h\\\\=\boxed{2.76\times10^8\ m/h}\\\\Answer:\fbox{A.}
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Answer:

G'(3,2)

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