1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
Write the multiple of 5 starting from 100
ruslelena [56]
100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150,...
3 0
3 years ago
Read 2 more answers
Help me please help me thank you
kow [346]

Answer: 110, 35, 70, G, J, F, E, B, A, H, C, D, I

Step-by-step explanation:

8. For number 8, you will be using the exterior angle theorem. The exterior angle theorem states that the exterior angle equals the two angles inside the given triangle. Since we have 50 and 60, you will add 50 + 60 to get 110.

9. In this problem, you shall use the vertical angle theorem. The vertical angle theorem is simply that any angles vertical from one another are congruent. So a will be also 35 degrees.

10. This is an image depicting two lines cut by a transversal, creating multiple congruent angles. With this, you will be using the alternate interior angle theorem. Alternate interior angles are angles on different sides of the transversal but inside both of the lines that were cut into, as shown above. So,  b will also equal 70 degrees.

Part B:

1. G

2. J

3. F

4. E

5. B

6. A

7. H

8. C

9. D

10. I

8 0
3 years ago
Read 2 more answers
A wall of a building is 34 inches wide Sixteen inches is concrete, 12 inches is brick, and 6 inches is limestone What fraction o
Elza [17]
The fraction wall of the concrete is 8/17.
6 0
3 years ago
crystal reads 25 pages in 1/2 hour. Write an equation to represent the relationship between the number of pages Crystal reads an
mafiozo [28]
I think that it would be 25p multiplied  by 1/2t
I am not for sure though
8 0
3 years ago
Am I able to evaluate sin(cos^1(7/11)) without a calculator? If yes, how? ...?
Vaselesa [24]
If this function is:
sin(cos(7/11))
Then it can not be evaluated without a calculator.
5 0
3 years ago
Other questions:
  • Multiply. Simplify your answer and write it as a proper fraction or as a whole or mixed number.
    9·2 answers
  • Howmany lines of symmetry does a circle have
    13·2 answers
  • the volume of two similar prisms are 891 cm and 33cm. the surface area of the larger prism is 153cm. what is the surface area on
    9·2 answers
  • Solve the equation below for the variable "x". *<br> - 2x + 10 = 8
    14·2 answers
  • What are the vertex and x-intercepts of the graph of y=x2 - 4x -21? Select one answer for the vertex and one for the x-intercept
    13·2 answers
  • Helpppp meeeeee please i a test and i need the answer right now please!!!!!
    6·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%2B1%2B5%3Dx%7D" id="TexFormula1" title="\sqrt{x+1+5=x}" alt="\sqrt{x+1+5=x}" align
    13·1 answer
  • In a circle, a 60 degree sector has an area of 25 pi square feet. what is the radius of the circle?
    12·1 answer
  • PLEASE HELP URGENT!!!!!!!!!! what is the equation of the line? Graph shown at the top
    5·1 answer
  • PLZ PLZ PLZ HELP<br>ME ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!