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yan [13]
2 years ago
5

Pls help, its probs gonna get deleted

Mathematics
1 answer:
Paladinen [302]2 years ago
3 0

Sorry it took so long :)

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3 years ago
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How much material is required to make a pipe that is 300 cm long whose outer diameter is 8 cm with an inner diameter of 5 cm? Sh
worty [1.4K]

Answer:

Step-by-step explanation:

If you had a solid cylinder, in order to find the amount of material that makes up that solid cylinder, you would find the volume using the radius of 4 (half of the diameter 8).  BUT we want to know the volume of the solid with the radius of 4 minus the solid that has a radius of 2.5 (half of the diameter 5).

V_o-V_i  That's volume outer - volume inner.  To find the outer volume:

V=\pi r^2h so

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V_i=\pi (2.5^2)(300) and

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Subtract the inner from the outer:

4800\pi-1875\pi=2925\pi cm^3

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9189.16 cm³

4 0
2 years ago
Pentagon ABCDE was enlarged: a What is the ratio of enlargement to the original? Convert the ratio to a percent.
Step2247 [10]

Answer:

hello, yes or nou sorry jajaj

6 0
3 years ago
Please help. Find the two missing sides and write your answer as in simplified radical form.
ki77a [65]

Answer:

x and y =   5√2.

Step-by-step explanation:

This is a 45:45:90 triangle so length of x = length of y.

In this triangle the ratio of the sides is 1:1:√2

Finding length of x and y:

1/√2 = x/10

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5 0
3 years ago
If you just write whatever just for the points i will report you.
Hoochie [10]

<u>Answer:</u>

Below!

<u>Step-by-step explanation:</u>

<u>The best way to answer this question is to read the statement carefully.</u>

  • => Five less than twice a number = 2x - 5
  • => Five times the sum of two numbers = 5(x + y)
  • => The difference of 5 and a number, squared = (5 - x)²

Hoped this helped.

BrainiacUser1357

5 0
2 years ago
Read 2 more answers
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