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tatyana61 [14]
3 years ago
15

If the area of a circle is 36 pi, what is it's circumference?

Mathematics
2 answers:
Reptile [31]3 years ago
8 0

Answer:

C = 12π or 37.7

Step-by-step explanation:

A = πr²

36π = πr²

π's get divided out and you are left with:

r² = 36

if you take the square root of 'r' it will equal the square root of 36, which is 6

C = 2πr

C = 2π(6)

C = 12π or 37.7

damaskus [11]3 years ago
6 0

Answer

the answer is 12*sqrt pi

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The height of a triangle is 9, the length is 5, what is the third side?
pentagon [3]

Use the Pythagorean Theorem to solve for the third side. The third side must be the hypotenuse since the height (vertical leg) is 9, and the length (horizontal leg) is 5.

a² + b² = c², where a and b are the legs and c is the hypotenuse. Plug in 5 and 9 for a and b; solve for c.

5² + 9² = c² ⇒ 25 + 81 = c²

106 = c²

Square root both sides.

c = 10.3

Third side: 10.3

5 0
3 years ago
The bucket is 30% full. when half way empty it is 15% full. how full is the bucket when 250% full?
Sunny_sXe [5.5K]

Answer:

125%

Step-by-step explanation:

divide 250% by 2

7 0
2 years ago
Read 2 more answers
Question in image. :)
quester [9]

a. f(a) =5a+12

we have 1. a=6

Therefore, where ever we find a we'll substitute in 6

f(6) =5(6) +12

6f=30+12

6f=42

so therefore 1. a=6 will match c on the right

2. a=2

f(2) =5(2) +12

2f = 10+12

2f = 22

therefore 2. a=2 will match a on the right

3. a=4

f(4) =5(4) +12

4f=20+12

4f=32

therefore 3. a=4 will match d on the right

4. a=5

f(5) =5(5) +12

5f=25+12

5f=37

therefore 4. a=5 will match b on the right

7 0
2 years ago
Would the answer be 36?
umka2103 [35]

Answer:

No, it would be 72

Step-by-step explanation:

In similar triangles, the sides are different but the angles are the same. You still had a great guess though :)

Pls give brainliest

6 0
3 years ago
What’s <br> 3.984<br> + 17<br> ? Help
Korolek [52]

Answer:

20.984

Step-by-step explanation:

Just do:

3.984

+17.000

17 plus 3 equals 20 and .984 + 000 is .984

So your answer is 20.984

8 0
3 years ago
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