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spayn [35]
3 years ago
7

I need help please!!

Mathematics
2 answers:
Usimov [2.4K]3 years ago
8 0

Answer:

Step-by-step explanation:

radius r = 5 cm

Height h = 5 cm

Volume of cylinder = πr²h

                                = π * 5 * 5 * 5

                                = 125π cm³

Rasek [7]3 years ago
7 0

Answer:

250π

Step-by-step explanation:

The formula for finding the volume of a cylinder is πr^2h

So, you just substitute the values:

π x 5^2 x 2(5)

Then simplify,

π x 25 x 10

To then get 250π

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Area of a rectangle = length(x) × breath(y)

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However, to determine the fencing, we have:

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Suppose we use the x-direction to estimate the region where the fencing is located, we have:

Length of fencing = 2x + 2y + x

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From equation (1), make (y) the subject of the formula and replace the value of y with equation (2)

The Length of fencing is:

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\mathbf{\dfrac{dL}{dx} = 3 - \dfrac{2000000}{x^2} = 0}

\mathbf{ x^2= \dfrac{2000000}{3} }

\mathbf{ x= \dfrac{1000\sqrt{2}}{\sqrt{3}} }

\mathbf{x = \dfrac{1000 \sqrt{6}}{3}}

Now, if we replace the value with equation (1), then y will be:

\mathbf{y = \dfrac{1000000}{\dfrac{1000 \sqrt{6}}{3}} }\\ \\  \\ \\ \mathbf{y = \dfrac{3000 }{\sqrt{6}}}

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\mathbf{L = 3( \dfrac{1000  \sqrt{6}}{3}) + 2(500 \sqrt{6})}

\mathbf{L =1000  \sqrt{6} + 1000 \sqrt{6}}

\mathbf{L =2000  \sqrt{6} }

\mathbf{L \simeq 4899 \ ft}

Learn more about the area of a rectangle here:

brainly.com/question/25292087

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Step-by-step explanation:

For this case we know the following info:

Total waste generated for a certain country in 2005 : 4.033x10^9 pounds

Total population for this country in 2005 2.05x10^7 people

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196.73 \frac{pounds}{people}

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