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yKpoI14uk [10]
3 years ago
15

How to find radius from circumference

Mathematics
2 answers:
ElenaW [278]3 years ago
5 0
C=pi * d
D=c/pi
R=d/2
9966 [12]3 years ago
3 0

Answer:

The circumference of a circle is equal to pi times the diameter. The diameter is two times the radius, so the equation for the circumference of a circle using the radius is two times pi times the radius.

You might be interested in
four students have to give a speech in class today. In how many different orders can they give their speeches?
bulgar [2K]

Answer:

There are 24 possible outcomes.

Step-by-step explanation:

1. 1-2-3-4

2. 1-4-3-2

3. 1-4-2-3

4. 1-2-4-3

5. 1-3-2-4

6. 1-4-3-2

7. 2-4-3-1

8. 2-1-3-4

9. 2-1-4-3

10. 2-4-1-3

11. 2-3-1-4

12. 2-3-4-1

13. 3-2-1-4

14. 3-2-4-1

15. 3-1-2-4

16. 3-1-4-2

17. 3-4-1-2

18. 3-4-2-1

19. 4-3-2-1

20. 4-3-1-2

21. 4-2-3-1

22. 4-2-1-3

23. 4-1-2-3

24. 4-1-3-2

Hope this helps!!


5 0
3 years ago
The cost of a book is $x what is the expression in terms of x for the number of these books which are bought for $40
spayn [35]

Answer:

In x dollars,

number of book that can be bought = 1

So, In 1 dollar,

number of books that can be bought = 1/x

Hence in 40 dollars,

number of books that can be bought = 40/x

6 0
2 years ago
Read 2 more answers
Find a cubic function that has the roots 5 and 3-2i
Zolol [24]

Answer:

P(x)=x^3-11x^2+43x-65

Step-by-step explanation:

If the complex number 3-2i is a root of a cubic function, then the complex number 3+2i is a root too. Thus, the cubic function has three known roots 5,\ 3-2i,\ 3+2i and can be written as

P(x)=(x-5)(x-(3-2i))(x-(3+2i)),\\ \\P(x)=(x-5)(x^2-x(3-2i+3+2i)+(3-2i)(3+2i)),\\ \\P(x)=(x-5)(x^2-6x+9-4i^2),\\ \\P(x)=(x-5)(x^2-6x+9+4),\\ \\P(x)=(x-5)(x^2-6x+13),\\ \\P(x)=x^3-11x^2+43x-65.


4 0
3 years ago
Hi please solve this for me!
sweet-ann [11.9K]

Answer:

Angle IEF = Angle CEH ( corresponding)

Therefore Angle CEH = 96°

8 0
3 years ago
Read 2 more answers
A local hamburger shop sold a combined total of 525 hamburgers and cheeseburgers on Monday. There were 75 more cheeseburgers sol
max2010maxim [7]

Answer: 225 hamburgers were sold on Monday.

Step-by-step explanation:

525 = h + c

h = hamburger

c = cheeseburger

c = 75 + h

h + (h + 75) = 525

2h + 75 = 525

-75

2h = 450

/2

h = 225

7 0
3 years ago
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