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natita [175]
3 years ago
12

A well of diameter 4m is dug 14m deep. The earth taken out is spread evenly all around the well to form a 40cm high embankment.

Find the width of the embankment
Mathematics
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

82.72m

Step-by-step explanation:

Volume = πr2h

= 3.142*7*7*14

= 2,155.41m³

Now that we hav the volume of earth, we go on to find the raduis of the spread

2155.41m³ = 3.142*r²*0.4

2155.41m³ = 1.26r²

r² = 1,710.64

r = 41.36m

Width = diameter = 2r = 82.72m

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KonstantinChe [14]

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Step-by-step explanation:

Apply the distributive property.

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Multiply  

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2 years ago
8 is 1 tenth of what number
Elenna [48]

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4 0
3 years ago
Read 2 more answers
What is the equation for the line?
Irina-Kira [14]
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Next in order to find b, you have to plug in a point:
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