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Andrew [12]
3 years ago
10

Find the area of the circle. Round your answer to the nearest tenth.

Mathematics
1 answer:
kotegsom [21]3 years ago
8 0

Step-by-step explanation:

area of a circle

A = pi x r^2

r=9

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For any circle, which ratio is equal to the number n? Select all that apply. Plsss help me!!
barxatty [35]

Answer:

Options A-C-F

Step-by-step explanation:

we know that

<em>The circumference of a circle is equal to</em>

C=\pi D  or  C=2\pi r

where

D is the diameter and r is the radius

therefore

\pi =\frac{C}{D}  or \pi =\frac{C}{2r}

The number pi is the ratio circumference - diameter or is the ratio circumference - 2 times radius

<em>The area of the circle is equal to</em>

A=\pi r^{2}

therefore

The number pi is the ratio Area - radius squared

6 0
3 years ago
Please solve both with explanation, I’ll give brainliest
DiKsa [7]

1st and 2nd pictures are for finding area and 3rd picture is for finding perimeter

hope you understood well and if not and you can ask again

4 0
2 years ago
Answer all for brainliest
Marizza181 [45]

Answer:

rrnw

Step-by-step explanation:

5 0
2 years ago
Find two numbers a and b such that a+b=0 and ab=36
PolarNik [594]

Answer:

b = 6i   then a = -6i

b = -6i   then a = 6i

Step-by-step explanation:

a+b=0

ab=36

a = -b

a(b) = 36

-b * b = 36

- b^2 = 36

b^2 = -36

Take the square root of each side

sqrt(b^2) = sqrt(-36)

b =± 6i

a = - (± 6i)

so b = 6i   then a = -6i

b = -6i   then a = 6i

4 0
3 years ago
PLEASEEEE HELPPP
soldier1979 [14.2K]
Ik I’m not know help but gee I forgot this just go on google
4 0
2 years ago
Read 2 more answers
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