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kolezko [41]
3 years ago
14

Find -3\7 ÷ -1 1\14

Mathematics
2 answers:
daser333 [38]3 years ago
8 0

Answer: -6/11

<u><em>Step-by-step explanation:</em></u>

Step One: Turn the divide sign into a multiply sign and reverse the second fraction

-3/7 x 14/11

Step Two: Multiply

-42/77

Step Three: Simplify

-6/11

Answer = -6/11

lesantik [10]3 years ago
7 0

Answer:

6/11

Step-by-step explanation:

-3/7×14/-11

-3×2/-11

6/11

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defon

Answer: 0.31 or 31%

Let A be the event that the disease is present in a particular person

Let B be the event that a person tests positive for the disease

The problem asks to find P(A|B), where

P(A|B) = P(B|A)*P(A) / P(B) = (P(B|A)*P(A)) / (P(B|A)*P(A) + P(B|~A)*P(~A))

In other words, the problem asks for the probability that a positive test result will be a true positive.  

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P(B|~A) = 0.02 (probability a person tests positive given they do not have the disease)

P(~A) = 1-0.009 = 0.991 (probability a particular person does not have the disease)

P(A|B) = (0.98*0.009) / (0.98*0.009 + 0.02*0.991)

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3 0
2 years ago
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<u>Answer</u>:

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<u>Explanation</u>:

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