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Delicious77 [7]
3 years ago
9

Find the area of the circle with the given radius or diameter. Use = 3.14. d=13

Mathematics
1 answer:
leva [86]3 years ago
7 0
Area of a triangle = \pi r^{2}
r = diameter/2
so area = pi * (13/2)^2
= 3.14*6.5*6.5 = 132.665 
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The radius of the base of a cylinder is 10 centimeters and its height is 20 centimeters A cone is used to fill the cylinder with
rewona [7]

Answer:

24 times

Step-by-step explanation:

cone is used to fill cylinder

conevolume times x=cylindervolume

so

x=cylinderv/conev

cylinderv=hpir^2

conevolume=1/3hpir^2

cylinder:

v=hpir^2

r=10

h=20

v=20*pi*10^2=2000π

cone=1/3hπr²

r=5

h=10

v=1/3(10)π5²=250π/3

volume of cylinder ÷ volume of cone

= 2000π ÷ (250π÷3)

= 6000π ÷ 250π

= 600÷25

= 24

please mark me brainliest

6 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST
coldgirl [10]

Answer:

1)4x+4y=1, 6x−y=1

x+y=4, x−y=2

x+y=−2,x+2y=2

2)2x+y=3, 2x−8y=19

Step-by-step explanation:

hope this helps

have a nice day ^_^

6 0
2 years ago
What is the sum of 4 2/4 + 7 4/5 ?
lilavasa [31]
12.3 or 12 3/10

4.5 + 7.8 = 12.3

or

4 10/20 + 7 16/20 = 11 26/20

11 26/20 can be simplified to 12 6/20 and further simplified to 12 3/10
7 0
2 years ago
Which is the definition of a line segment?
maxonik [38]
Hi there!

A line segment, hence its name, is basically a part of a line. It has two endpoints and does not continue forever in any directions.

Hope this helps!
8 0
3 years ago
Read 2 more answers
The value of x is___.
monitta

Answer:

x = 3

Step-by-step explanation:

To find the value of x. We have to use Exterior Angle Theorem.

It is says "The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles of the triangle."

In the given figure,

45x = 25x + (57 + x)

Now let's find the value of x.

First we need to isolate the variable terms

45x - 25x = 57 + x

20x - x = 57

19x = 57

x = 57/19

x = 3

The value of x = 3.

Thank you.

3 0
3 years ago
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