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3 years ago

9

Is it true or false

2 answers:

3241004551 [841]3 years ago

7 0

True.

I hope this helps you

LiRa [457]3 years ago

5 0

I’m pretty sure it’s true! Sorry if it wrong! :)

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Consider a circle that has a circumference of 28/3.14 centimeters. What is the area of this circle? Answer fast plz also can you

bija089 [108]

Answer:

$A=6.33\ cm^2$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The circumference of a circle is equal to

$C=2\pi r$

we have

$C=\frac{28}{3.14}\ cm$

$\pi=3.14$

substitute the values

$\frac{28}{3.14}=2(3.14)r$

$r=\frac{28}{19.7192}\ cm$

$r=1.42\ cm$

step 2

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

substitute the values

$A=(3.14)(1.42)^{2}$

$A=6.33\ cm^2$

7 0

4 years ago

Values of x in the equation 10x^2-64=36+6x^2

NISA [10]

10x^2-6x^2 = 4x^2
-64-36 = 100
4x^2 -100 = 0
(2x -10)(2x+10)
X = 2/10 and x = - 2/10

5 0

3 years ago

What the geometric mean of 4 and 8

Arte-miy333 [17]

I think the correct answer is 5.6569

5 0

2 years ago

Sonja [21]

Answer:

A

Step-by-step explanation:

hope this helps:))

6 0

3 years ago

Karen reads 20 pages of her book in half hour if she reads about 3 hours of tha

creativ13 [48]

Answer:

120 pages

Step-by-step explanation:

1/2 h ↔ 20 pages

1 h ↔ 40 pages

3 h ↔ 120 pages

8 0

3 years ago