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sergejj [24]
4 years ago
9

I need help with 6-9, 8th grade homework, please im desperate .

Mathematics
1 answer:
serious [3.7K]4 years ago
4 0

Answer:

6) 8

7) 10

8)1/3

9)12 feet

Step-by-step explanation:

For questions 6,7,8...,just use the calculator

9)Since all sides of a square are equal

Let one side of the square be (z)

; Area of a square = side × side

; 144 = z × z

; 144 = z^2

Hence one side of the square is....,

square root of (144)...in which you can just use a calculator

; Side length = 12 feet

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Answer:

The volume of hemisphere is <u>19.4 cubic meter</u>.

Step-by-step explanation:

Given:

A hemisphere is with a radius of 2.1 m.

Now, to find the hemisphere volume with radius 2.1 m.

Radius\ (r) = 2.1 m.

So, we put formula to get the volume of hemisphere:

Volume=\frac{2}{3} \pi r^3\ \ \ \ \ (Taking\ the\ value\ of\ \pi =3.14)\\\\Volume=\frac{2}{3} \times 3.14\times 2.1^3\\\\Volume=\frac{2}{3} \times 3.14\times 9.26\\\\Volume=19.384\ cubic\ meter.

<u><em>Hence, the rounded to the nearest tenth of a cubic meter is 19.4 cubic meter.</em></u>

Therefore, the volume of hemisphere is 19.4 cubic meter.

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