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worty [1.4K]
3 years ago
7

What is the volume of this cylinder? (Round to the nearest inch ) 7( radius)

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

Answer:

The formula for the volume of a cylinder is:

V= pi * radius^2 * height

When the values are plugged in, you would have:

V= pi * 7^2 * 14

Then simplified....

V= pi * 49 * 14

V= pi * 686

V= 2155.13256036

and when rounded to the nearest inch...

the volume would be approximately 2155 inches.

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WILL MARK BRAINLIEST!!! PLEASE ANSWER!!! WRONG ANSWERS JUST FOR POINTS WILL BE REPORTED!!!!!!!!!!!!!!
alexgriva [62]

Answer:

916.1 cm^3

Step-by-step explanation:

1) find the radius of the cylinder:

radius = dimater / 2 = 7,3 / 2 = 3.65 cm

2) find the base area of the cylinder:

base area = radius^2 x 3.14 = 3.65^2 x 3.14 = 41.83265 cm^2

3) find the height of the cylinder:

height = 7.3 x 3 = 21.9 cm

4) find the volume

V = base area x height = 41.83265 x 21.9 = 916.135035 cm^3

5) round to nearest tenth:

916. 1 cm^3

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3 years ago
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Kelly has a cherry tree in her yard. Currently the tree is 9 feet tall. That is 80% taller than it
lukranit [14]

Answer:

80 percent of 9 is 4/5th of 9, which is 36/5 or 7.2

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2 years ago
The quotient of a number and 2 increased by 9 is -15
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Answer:

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Step-by-step explanation:

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Suppose an egg is thrown off the top of a building 240 feet above ground. The height, h, in feet of the rock above the ground is
Nostrana [21]
<h2>Hello!</h2>

The answer is: D) 6.2 seconds

<h2>Why?</h2>

When the egg hit the ground,  the height will be equal to 0, so, from the given equation we need to find the roots or zeroes.

It's a quadratic function, we can find the roots using the quadratic equation:

\frac{-b+-\sqrt{b^{2}-4ac}}{2a}

So, from the given function we know that:

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So, substituting we have:

\frac{-60+-\sqrt{60^{2}-4*(-16)*240}}{2*(-16)}=\frac{-60+-\sqrt{3600+15360}}{-32}\\\\\frac{-60+-\sqrt{18960}}{-32}=\frac{-60+-(137.69)}{-32}

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6.18≈6.2 seconds

Hence, it takes 6.2 seconds to the egg to hit the ground.

Have a nice day!

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