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Nataly_w [17]
3 years ago
11

40% of what number is 14

Mathematics
1 answer:
Virty [35]3 years ago
6 0
0.4x = 14
x = 14/0.4 = 35
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24 ÷ 21 with out any remainders​
shtirl [24]
24 divided by 21 is 1.14285714286. In fraction form it is 8/7, or 1 1/7.
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3 years ago
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A cylindral drill with radius 5 cm is used to bore a hole through the center of a sphere with radius 9 cm. Find the volume of th
masya89 [10]

The volume of the ring-shaped remaining solid is <u>1797 cm³</u>.

The volume is the total space occupied by an object.

The volume of a sphere of radius r units is given as (4/3)πr³.

The volume of a cylinder with radius r units and height h units is given as πr²h.

In the question, we are asked to find the volume of the remaining solid when a sphere of radius 9cm is drilled by a cylindrical driller of radius 5cm.

The volume will be equal to the difference in the volumes of the sphere and cylinder, where the height of the cylinder will be taken as the diameter of the sphere (two times radius = 2*9 = 18) as it is drilled through the center.

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= (4/3)π(9)³ - π(5)²(18) cm³,

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= 1796.99 cm³ ≈ 1797 cm³.

Therefore, the volume of the ring-shaped remaining solid is <u>1797 cm³</u>.

Learn more about volumes of solids at

brainly.com/question/14565712

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3 0
1 year ago
Simplify 8(xy + 8) + 1. 8xy + 9 8xy + 65 8xy + 73
mixer [17]

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3 years ago
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Paha777 [63]

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<u>Explanation:</u>

Average rate of change is slope: \frac{y_{2}-y_{1}}{x_{2}-x_{1}}.  Need to find the y-coordinates:

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   = -18

7 0
3 years ago
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I think 225 cuz its only asking for the feet needed no the width so thats irrelevant <span />
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