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docker41 [41]
3 years ago
13

A child rolls a ball on a level floor 3.6 m to another child. if the ball makes 18.0 revolutions, what is its diameter?

Mathematics
1 answer:
victus00 [196]3 years ago
3 0
To find the diameter, find the circumference, i.e the length covered in one revolution, and then subject the diameter from formulas.

Circumference = 3.6 ÷ 18 = 0.2m = 2πr

πr = 0.2 ÷ 2 = 0.1

r = 0.1 ÷ (22/7) = (0.1 * 7) ÷ 22 = 0.7 ÷ 22

r = 0.0318

Diameter = 2r

Diameter = 2 * 0.0318 = 0.0636m ...//Ans ...
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<h3>What is probability?</h3>

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words the probability is the number that shows the happening of the event.

We have:

Mary has 3 blouses (red, black, and white), 2 pairs of pants (black and blue), and 4 pairs of shoes (red, blue, black, and white).

P(black blouse) = 1/3

P(black pants) = 1/2

P(black shoes) = 1/4

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Thus, the probability that Mary's outfit will be black blouse, black pants, black shoes is 1/24 if the Mary has 3 blouses, 2 pairs of pants, and 4 pairs of shoes.

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brainly.com/question/11234923

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