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Y_Kistochka [10]
3 years ago
9

Pls help I need this pls help I’m begging u have a good day pls help

Mathematics
2 answers:
horrorfan [7]3 years ago
6 0

Answer:

J

Step-by-step explanation:

In order to solve this question, we need to subtract the smaller area of the hole from the bigger area of the actual donut. We use the formula a=\pi r^2. We plug the numbers in for the smaller circle and the area of the smaller circle is 3.14. Then, we plug in the numbers for the bigger number and we get 28.27. We subtract 3.14 from 28.27 and we get approximately 25, which is equal to J.

Alexxx [7]3 years ago
5 0

Answer:

25

Step-by-step explanation:

You might be interested in
A triangular prism is 40 millimeters long and has a triangular face with a base of 24 millimeters and a height of 35 millimeters
abruzzese [7]

Answer:

26,508

Step-by-step explanation:

To find out how to solve this is that we first need to know that Triangular prisms have their own formula for finding surface area because they have two triangular faces opposite each other. The formula A=12bh is used to find the area of the top and bases triangular faces, where A = area, b = base, and h = height.

Also: To find the total surface area of a prism, you need to calculate the area of two polygonal bases, the top face and bottom face. And then calculate the area of lateral faces connecting the bases. Add up the area of the two bases and the area of the lateral faces to get the total surface area of a prism.

The top= 12 x 24 x 35 = 10,080

The lateral faces: 12 x 37 x 37 = 16,428

Surface Area= 10,080 + 16,428 = 26,508

7 0
3 years ago
Can someone answer this for me? <br><br> Thanks!
MrRa [10]

Hiii :))

Answer is in the attachment.

Identity used :-

1) cosec² α = 1 + cot² α

Trigonometric Ratio :-

1) cot 30° = √3

_____

Reddam is an expensive school, right?

RainbowSalt2222 ☔

4 0
2 years ago
Read 2 more answers
Evaluate when a=7 and x = -5 -a+3x
Tema [17]
A = 7 and x = -5

-a + 3x = -(7) + 3(-5) = -7 -15 = -22

Answer: -22
6 0
3 years ago
Read 2 more answers
What is 3÷11=<br> A. 11/3<br> B. 3/11<br> C. 3/8<br> D. 8/3
Katen [24]

Answer:

B. 3/11

Step-by-step explanation:

the division symbol: ÷ essentially is the same as /

if you replace ÷ with / its the same thing.

3 0
2 years ago
Read 2 more answers
I WILL NAME YOU THE BRAINLIEST!
OlgaM077 [116]

Answer: c=5.4

The two roots are 3/5 and 9/5


Step-by-step explanation:

assume 5x2−12x c=0 is supposed to be 5x^2 - 12x + c = 0

p = (12 + sqrt(144-20c))/10

q = (12 - sqrt(144-20c))/10

p-3q=0,

1.2 + 0.1sqrt(144-20c) +

-3.6 + 0.3sqrt(144-20c) = 0

-2.4 + 0.4sqrt(144-20c) +2.4 = 2.4

sqrt(144-20c) = 2.4/0.4 = 6

144-20c=36

144-36=20c

c = 108/20 = 5.4

5x^2-12x+5.4=0

x = 3/5 or x = 9/5


5 0
3 years ago
Read 2 more answers
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