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BlackZzzverrR [31]
2 years ago
8

A cylinder has a height of 4 centimeters. Its volume is 12.56 cubic centimeters. What is the radius of the cylinder?

Mathematics
2 answers:
Alinara [238K]2 years ago
7 0

Answer:

radius of cylinder = 1 cm

Step-by-step explanation:

Start with the formula for the volume of a cylinder:  V = (pi)r²h, where r is the radius and h is the height.  We want to solve this for the radius, r.

Dividing both sides of the Volume formula (above) by (pi)h, we get:

           V

r² = -----------

        (pi)h  

If we now substitute 12.56 cc for V, 3.14 for pi and 4 cm for h, we get:

          V           12.56 cc

r² = ---------- = ----------------- = 1 cm²

       (pi)h         3.14(4 cm)

Taking the square root of both sides, we get    r = 1 cm

raketka [301]2 years ago
6 0

Step-by-step explanation:

hope it will help you...

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Using permutations and the probability concept, it is found that there is a 0.0417 = 4.17% probability that Nia is chosen as president.

  • A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.
  • As there are different roles, the order in which the students are chosen is important, hence, the <em>permutation </em>formula is used to solve this question.

Permutation formula:

The number of possible permutations of x elements from a set of n elements is given by:

P_{(n,x)} = \frac{n!}{(n-x)!}

Desired outcomes:

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D = P_{23,3} = \frac{23!}{20!} = 10626

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0.0417 = 4.17% probability that Nia is chosen as president.

To learn more about probabilities, you can take a look at brainly.com/question/24437717

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