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Vladimir79 [104]
4 years ago
13

PLEASE HELP MEEEE THANK YOUUU

Mathematics
2 answers:
Nesterboy [21]4 years ago
7 0

To calculate the area of a circle, use the equation a=pir^2 or area=3.14*radius squared

Insert the known values. We need to find the radius of the circle. Since the radius is half of the diameter, divide the diameter by 2 to get the radius.

The diameter is 20.

20/2=10

Area=3.14*10 squared

Area=3.14*100

Area=314 cm

Hope this helps!

bogdanovich [222]4 years ago
3 0
The formula for area of a circle is A = π r^2.

The diameter of this circle is 20. The radius is half the diameter so the radius is 10.

You substitute 10 for r in the formula to get A = π(10)^2. 10 to the second power is 10 times 10 which is 100 so you get A= π(100). When you multiply π by 100, you get 314.15 which rounded to the nearest tenth is 314.5.

The area of the circle is 314.5 squared centimeters.
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In the triangular prism shown below, which lines are parallel?
musickatia [10]

Answer:

JM and KN

Step-by-step explanation:

one thing you can do to eliminate some answer choices is to make sure that the statement doesn't repeat a letter

the correct answer would be something like AB and BC, it would be like AB and CD

from there, you just have to look and pick your answer

3 0
3 years ago
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A rectangular photograph is nine centimeters wide and fourteen centimeters long. The photograph is enlarged by increasing the le
koban [17]

Answer:

Width=13cm

Length=18cm

Step-by-step explanation:

Width of the Initial Photograph=9cm

Length of the Initial Photograph=14cm

If width and length are increased by an equal amount, say x

New Width=9+x

New Length=14+x

Area of the new photo is 108 square centimeters greater than the area of the original photo.

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Aeea of the New Photo=126+108=234cm²

Therefore:

(9+x)(14+x)=234

126+9x+14x+x²-234=0

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x=-27 or x=4

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x=4cm

The dimensions of the new photo are:

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4 0
3 years ago
Helpppppppppppppppppppppppppppppppppppppppppppp
Vikki [24]
13 1/2 = 13.5 hours as decimal

hope it helps
6 0
3 years ago
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Jajajaja helppppppppp <3
Anna11 [10]

you can subtract from point 1 to point 2

(9,-2) - (8,3)

9-8= 1

-2-3= -5

therefore horizontal leg is 1

vertical leg is -5

you can also sketch and count the units :)

3 0
3 years ago
Help with this for brainliest
AysviL [449]

Answer:

1

Step-by-step explanation:

-9-(-10)

-9 + 10 (double negative makes a positive)

1

4 0
3 years ago
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