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katrin2010 [14]
3 years ago
14

Help me please thank you

Mathematics
1 answer:
ser-zykov [4K]3 years ago
5 0
90 degrees because that is a 30 60 90 triangle
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Anvisha [2.4K]

Answer:

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Step-by-step explanation:

Given

P(A or B)= P(B)-P(A and B)

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P(A and B)=1/8

P(A or B)= 3/4

Required

Find P(B)

To find P(B), all we need to do is to substitute values of P(A or B) and P(A and B) in the given equation.

This goes thus;

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Make P(B) the subject of formula

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Take L.C.M

P(B) = \frac{6 + 1}{8}

Add fractions

P(B) = \frac{7}{8}

From the workings above, the value of P(B) using the given equation is \frac{7}{8}

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