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Alla [95]
3 years ago
11

What does r equal -13=r/9+8

Mathematics
1 answer:
Shkiper50 [21]3 years ago
3 0

Answer:

13

Step-by-step explanation:

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The probability of drawing a goldfish on the first draw is 16 / ( 16 + 24 ), or 16/40, or 2/5. Supposing that the first fish drawn is actually a goldfish, then there are 15 goldfish left among 39 fish, and the probability of drawing a goldfish on the 2nd draw is 15/39, or 5/13. The (joint) probability of drawing 2 goldfish on the 1st 2 draws, without replacement, is (5/13)(2/5) = 2/13.

5 0
3 years ago
An irregular polygon is shown below:
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WITCHER [35]

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2 years ago
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