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Lera25 [3.4K]
3 years ago
10

A cube whose edge is 20 cm 1 point

Mathematics
1 answer:
Sav [38]3 years ago
6 0

Answer:

Unpainted  surface area = 514.28 cm²

Step-by-step explanation:

Given:

Side of cube = 20 Cm

Radius of circle = 20 / 2 = 10 Cm

Find:

Unpainted  surface area

Computation:

Unpainted  surface area = Surface area of cube - 6(Area of circle)

Unpainted  surface area = 6a² - 6[πr²]

Unpainted  surface area = 6[a² - πr²]

Unpainted  surface area = 6[20² - π10²]

Unpainted  surface area = 6[400 - 314.285714]

Unpainted  surface area = 514.28 cm²

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Answer:

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Step-by-step explanation:

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3 years ago
What is the mean for the data set?<br> 8 10 6 4<br> 12 6 8 14
Ipatiy [6.2K]

Answer:

<em>8.5</em>

Step-by-step explanation:

To find mean, we simply take the average of all the numbers in the data set, and divide in by the amount of values!

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..... please help me I don't understand this
Gennadij [26K]

Answer:

i think the 2nd one is correct .. i have not fluent in english to explain the answer.

8 0
3 years ago
88511, 16351, ?, 10251 missing number in sequence
Mrac [35]

Step-by-step explanation:

this is really complicated and tricky.

to create the next number, you have to add the first 2 digits of the previous number, then subtract the 3rd from the 2nd digit, multiply the 3rd and the 4th digit, and finally divide the 4th digit by the 5th.

so,

8+8 = 16

8-5 = 3

5×1 = 5

1/1 = 1

giving 16351 as next number.

the missing number we get then

1+6 = 7

6-3 = 3

3×5 = 15

5/1 = 5

giving 73155 as the next (missing) number.

control :

7+3 = 10

3-1 = 2

1×5 = 5

5/5 = 1

gives us 10251 as next number - correct.

but then it will end

1+0 = 1

0-2 = -2 ???? take the absolute value ?

2×5 = 10

5/1 = 5

8 0
2 years ago
Ty
AlekseyPX

Answer:

1

1

3

3

Step-by-step explanation: just cuz

8 0
3 years ago
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