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Kisachek [45]
3 years ago
13

A closed cylindrical tank of radius 1.50m and height 300cm, is made from a metal sheet. How much sheet is required?

Mathematics
1 answer:
Anika [276]3 years ago
4 0

Answer: 13.5π≈42.41

Step-by-step explanation:

Basically it is asking for the circumference of this cylinder.

#1 Find the circumference of the circle base

Formula to use: 2πr

2πr=2π(1.5)=3π

---------------------------

#2 Find the area of the circle base

Formula to use: πr²

πr²=π(1.5)²=2.25π

--------------------------

#3 Find the area of body of the cylinder

Formula to use: lw

300cm=3m

l (length)= 3π (since the body of the cylinder the basing on the circumference of the circle base)

w (width)= 3

lw=3π×3m=9π

----------------------------

#4 Add all of them together

There are 2 base and one body

2.25π×2+9π=13.5π

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3 years ago
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3 years ago
Solve x2 − 10x = −13.
aev [14]

Answer:

B

Step-by-step explanation:

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2 years ago
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Answer: 21

Step-by-step explanation:

Ok so first of all the numbers in the parentheses go first.

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After that you just keep rewriting the problem after every step.

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3x (50 - 6^2) ÷ 2 =

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<u><em></em></u>

<u><em></em></u>

<u><em>Hope this helps (:</em></u>

<u><em>Btw sorry if it's a bit confusing but the answer is 21</em></u>

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2 years ago
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Answer:

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