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777dan777 [17]
3 years ago
5

The area of a circle is 16π cm2. What is the circle's circumference?

Mathematics
1 answer:
agasfer [191]3 years ago
4 0

Answer:

C = 8 pi cm

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

16 pi = pi r^2

Divide each side by pi

16 = r^2

Taking the square root

4 = r

The circumference is

C = 2 * pi *r

C = 2* pi *(4)

C = 8 pi cm

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4 0
3 years ago
What is the solution <br> Please help
zloy xaker [14]

Answer:

Step-by-step explanation:

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8 0
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What expression is equivalent to -0.2 - 4.9?
nasty-shy [4]

Answer:

A

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Adding a negative is the same as subtracting a positive

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   -9.2           +              -6.7

6 0
3 years ago
550 tickets were sold for a game for a total of $712.50. If adult tickets sold for $1.50 and children's tickets sold for $1.00,
EastWind [94]

9514 1404 393

Answer:

  • adult: 325
  • children's: 225

Step-by-step explanation:

It usually works well to let a variable represent the higher-value item in the mix. Here, we can let 'a' represent the number of adult tickets sold. Then the total revenue is ...

  1.50a +1.00(550 -a) = 712.50

  0.50a = 162.50 . . . . . . . . . . . . . subtract 550 and collect terms

  a = 325

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4 0
3 years ago
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olganol [36]

Answer:

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Step-by-step explanation:

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=2/21+18/21

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Hope this helps! Comment any questions <3

4 0
2 years ago
Read 2 more answers
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