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Mila [183]
2 years ago
9

PLEASE HELP!

Mathematics
2 answers:
Andrej [43]2 years ago
3 0

Answer:

For the circle with the diameter of 7cm, the <u>area is about 38.48cm</u> and the <u>circumference is about 22cm</u>

For the circle with the diameter of 5cm, the <u>area is about 19.63cm</u> and the <u>circumference is about 15.7cm</u>

Step-by-step explanation:

The formula to find the area of a circle is pi*r^2

The formula to find the circumference is 2*pi*r

r = radius, which can be determined simply by taking the diameter, and dividing it by 2.

Alexxandr [17]2 years ago
3 0

Answer:

See below ~

Step-by-step explanation:

Circle 1 :

  • Area = πr² = 22/7 x (7/2)² = 11 x 7/2 = 77/2 = <u>37.5 cm²</u>
  • Circumference = 2πr = 2 x 22/7 x 7/2 = 2 x 11 = <u>22 cm</u>

Circle 2 :

  • Area = πr² = 22/7 x (5/2)² = 22/7 x 25/4 = 550/28 = <u>19.64 cm²</u>
  • Circumference = 2πr = 2 x 22/7 x 5/2 = 220/14 = <u>15.71 cm</u>
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Lara planted some seeds. For every 3 seeds Lara planted, only 2 seeds grew.
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Given:

For every 3 seeds Lara planted, only 2 seeds grew.

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Solution:

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3 0
3 years ago
Which inequality is true when the value of R is 18? I'ma shower the answers i can choose in the picture ​
musickatia [10]

Answer:

See below:

Step-by-step explanation:

Hello! We can check to see if the inequality is true by replacing r with 18 as we have been told to find them in which 18 as r makes the equation true.

So our equations to test for are:

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1. No, as a -21 is not greater than -6

2. Yes, as -15 is less than 6.

3. No, as 21 is not greater than 6

4. No, as -15 is not greater than 6.

Cheers!

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~kaikers
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