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Amanda [17]
3 years ago
8

Can you help me with this??

Mathematics
1 answer:
siniylev [52]3 years ago
6 0
8*8 - 4*4*pi*(1/2) = 64 - 8*pi
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The area of a circle is 18.31cm2.<br> find the length of the radius rounded to 2 dp.
drek231 [11]

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Step-by-step explanation:

5 0
2 years ago
Rewrite this expression using distributive property: 4a + 4b - 5
Triss [41]

Answer:

4(a + b) - 5

Step-by-step explanation:

Pull out the common factor

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A circle whose area is 4 has a radius of x find the area of a circle whose radius is 3x
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The first one is 1.12867 because you need to set it up like this.
4=3.14(x)squared
4/3.14=x(squared)
x=1.12867

The second one is done simply by multiplying it out.
A=3.14(3x)squared
A=3.14(9x[squared])
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7 0
2 years ago
Read 2 more answers
Find volume with full working out pls asap
ZanzabumX [31]

Answer:

868 m³

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Volume of cone with base Circle O:

h = 8.2+8.2 = 16.4 m

V1 = ⅓(pi×7.6²×16.4)

V1 = 991.97

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V2 = ⅓(pi×3.8²× 8.2)

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6 0
3 years ago
The ratio of the number of male lions to female lions in the animal reserve is 21:20. If there are 123 lions in the animal reser
Vanyuwa [196]
21 + 20 = 43

Total is 123, so divide by 43.

123/43 = 2.86 rounded to 3.

(females) 20 x 3 = 60 female lions 
7 0
2 years ago
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