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Likurg_2 [28]
3 years ago
5

A coin-operated machine sells plastic rings. It contains 6 yellow rings, 11 blue rings, 15 green rings, and 3 black rings. Sarah

puts a coin into the machine. Find the theoretical probability she gets a black ring. Express your answer as a decimal. If necessary, round your answer to the nearest thousandth. A. 11.667 B. 0.171 C. 5.833 D. 0.086
Mathematics
2 answers:
Fynjy0 [20]3 years ago
6 0
3/35 chance of it happening so rounded would be D. 0.086 as the answer :)
gregori [183]3 years ago
4 0

Answer:  D. 0.086

Step-by-step explanation:

Given : The number of black rings = 3

The total number of rings = 6+15+11+3=35

Now, Sarah puts a coin into the machine, then the theoretical probability she gets a black ring will be :-

\dfrac{3}{35}=0.08571428571\approx0.086

Hence, the theoretical probability she gets a black ring = 0.086

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The length of the base edge of a pyramid with a regular hexagon base is represented as x. The height of the pyramid is 3 times l
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We are given a regular hexagon pyramid

Since, it is regular hexagon

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b=x

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(a)

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So,

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Area of base of hexagon is

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(d)

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now, we can plug values

Volume is

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V=\frac{3\sqrt{3} }{2} x^3 units^3


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