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Mademuasel [1]
3 years ago
10

If a and b are complements, then which of the following is true about the probability of b based on the probability of a?

Mathematics
1 answer:
Vesnalui [34]3 years ago
3 0

Answer:

Option 2 is true.

Step-by-step explanation:

Th sum of probabilities of two complementary events is one, which implies

P(A) + P(B) = 1

So,

P(B) = 1 - P(A)

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Answer:

x = -10

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Step-by-step explanation:

In the given figure, it's an isosceles triangle

so, angle 2 = angle 3

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now,

in the given triangle,

=》Angle 2 + Angle 3 + 82° = 180°

( sum of all interior angles of the triangle = 180° )

=》Angle 2 + Angle 3 = 180° - 82

=》Angle 2 + Angle 3 = 98°

=》2 × Angle 2 = 98°

( since, angle 2 = angle 3 )

=》Angle 2 = 98° / 2

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so, Angle 2 = 49° = Angle 3

now,

Angle 2 = x + 59

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=》x = 49 - 59

=》x = -10

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Step-by-step explanation:

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