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attashe74 [19]
2 years ago
10

Please help me with this urgent

Mathematics
1 answer:
erma4kov [3.2K]2 years ago
5 0
1 is b and it would be 164
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Probability people where you at? 《brainlist if correct》
motikmotik
<h3>Answer:  5/9</h3>

As an approximate decimal, this is 0.5556 which converts to 55.56%

======================================================

Explanation:

Let's say there are 100 households (just for the sake of simplicity). We are told that 90% of them have answering machines. So that means 90 households have answering machines. In addition, 50 households have answering machines and call waiting. Those 50 households are part of the 90 mentioned previously.

We then select a house at random. Someone tells us (or we have some kind of prior knowledge) that whichever house is selected, they have an answering machine. We can ignore the 10 households that don't have an answering machine. Out of those 90 households, 50 have both features. So 50/90 = 5/9 is the probability of getting a household with both features.

The answer would be 1/2 or 50% if we didn't have the prior knowledge of the household having an answering machine. But with this prior knowledge, the conditions change and so does the probability.

----------------

You could also compute 0.50/0.90 to get the same answer.

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3 years ago
A fish is 12 Meters below the surface of the ocean. what is it's evelation ​
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A fish is 12 Meters below the surface of the ocean. What is the elevation it is -12
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2 years ago
a rectangular swimming pool is 6ft deep. one side of the pool is 2.5 times longer than the other. the amount of water needed to
Sav [38]

6 x 12 x 30 is your answer


7 0
2 years ago
Does anybody know this????
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F(x) = 2 * 2 ^x

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A sample contains 400 Plutonium-244 atoms. After 1 half-life(s) how many plutonium atoms are left on average?
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Answer:

200

Step-by-step explanation:

Divide 400 by 1/2 or 2.

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