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Aleksandr-060686 [28]
2 years ago
8

In circle S with m RST = 42 and

Mathematics
1 answer:
ANTONII [103]2 years ago
8 0

Answer:

2.20

Step-by-step explanation:

First, change 42° to radian

42/180 * π = 0.733 rad

The length of the arc = 3 * 0.733 = 2.20

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Step-by-step explanation:

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The formula for conditional probability of P(D|A) = P(A∩D)/P(A)

The table

              ↓         ↓       ↓

           :  C     :   D    : Total

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→ B      :  1      :    8    :   9

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∵ P(A|D) = P(D∩A)/P(D)

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- P(D) means total of column D

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∴ P(A|D) =

∵ P(D|A) = P(A∩D)/P(A)

∵ P(A∩D) = 2 ⇒ the common of A and D

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∴ P(D|A) =

∵ P(A|D) =

∵ P(D|A) =

∵   ≠  

∴ P(A|D) and P(D|A) from the table above are not equal

Step-by-step explanation:

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