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tatyana61 [14]
2 years ago
12

A cylinder has radius of 4 inches and height 10inches.There’s a small cylinder inside the previous cylinder of radius of 2 inche

s with the same height and same centre.What is total surface area?
Mathematics
1 answer:
MaRussiya [10]2 years ago
8 0

The surface area of the cylinder is 48π inches².

<h3>How to find the Surface area of a cylinder?</h3>

Surface area of a cylinder = 2πr(r + h)

where

  • r = radius
  • h = height

Therefore,

Surface area of the smaller cylinder = 2 × π × 2(2 + 10)

Surface area of the smaller cylinder = 4π(12)

Surface area of the smaller cylinder = 48π

learn more on Surface area  here: brainly.com/question/1780074

#SPJ1

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saul85 [17]

Answer: 120

%

=

1.2

If Maxine is correct, then she spent  

1.2

times the hours she did homework than last week.

15

⋅

1.2

=

18.0

=

18

15 hours

⋅

1.2

=

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=

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6 0
3 years ago
a book store contains 75,972 books, divided in three sections: science, business, and math. thr science section represents 1/3 o
Pachacha [2.7K]

Given that total number of books in the book store = 75972

Given that total number of books in science section =\frac{1}{3} rd of total books =\frac{1}{3}*75972 = 25324

Then remaining number of books = 75972 - 25324 = 50648


Given that 75% of the remaining books are in business section = 75% of 50648 = 0.75*50648 = 37986

Then number of books in the math section = 50648 - 37986 =  12662


Hence final answer is 12662 books in the math section.

4 0
3 years ago
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natta225 [31]

Answer: 15

Step-by-step explanation: there is a total of 126 people just find the first number that's divisible by 9 that's above it and divide

7 0
3 years ago
Carmen spent a total of $60 at the grocery store. of this amount, she spent $57 on fruit. What percentage of the total did she s
sdas [7]
The easiest way to determine the answer is to just divide $57/$60 = 0.95 or 95%
7 0
2 years ago
If a polynomial has one root in the form a+ vb, it has a second root in the<br> form of a__ vb.
allochka39001 [22]

Answer:

a - vb

Step-by-step explanation:

6 0
3 years ago
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