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Anvisha [2.4K]
3 years ago
15

I'm confused please help

Mathematics
1 answer:
Vesnalui [34]3 years ago
3 0
Carbon Dioxide: o2c
Water: h2o
Oxygen: o2

Water is h2o because there are 2 hydrogen molecules and 1 oxygen molecule.

h2 = 2 hydrogen molecules
o = 1 oxygen molecule
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Answer:

The total time the water balloon is in the air is 8 seconds. The balloon reaches the maximum height of 25 fee after 3 seconds. The water balloon has a height of 24 feet at 2 seconds and a half.

Step-by-step explanation:

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An unfair coin with​ Pr[H] = 0.2 is flipped. If the flip results in a​ head, a marble is selected at random from a urn containin
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Normally when dealing with coins the probability of getting heads or tails is 0.5 each. However in this case since its an unfair coin, the probability of getting heads is 0.2. 
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T - tails
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urn
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pr (T)   = 0.8
urn
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when heads is obtained 
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blue - 4/10 - 0.4
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pr (R ∩ H) red - 0.6*0.2 = 0.12

when tails is obtained 
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blue - 5/8 - 0.625
when multiplying with 0.8 probability of getting tails
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using bayes rule the answer can be found out, 
the following equation is used;
pr (H | R) = pr (R ∩ H) / {pr (R ∩ H) + pr (R ∩ T)}
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               = 0.12 / 0.42
               = 0.286
the final answer is 0.286
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