Geography, 25.07.2019 01:20 yellowsea84
Hydrology question: an urban drainage canal reaches flood stage each summer with relative frequency of 0.10; power failures in industries along the canal occur with a probability of 0.20; experience shows that when there is a flood for what ever reason the chances of power failure raised to 0.40. what is the probability of no flood in the area? what is the probability that power failure given that a flood occurs? what is the probability that a flood occurs but no power failure? what is the joint probability of no flood and no power failure in the area? what is the probability of a flood or power failure in the area?
Answers: 2
Geography, 22.06.2019 14:40
Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite
Answers: 2
Geography, 22.06.2019 18:00
Nrectangle pqrs, pq = 18, ps = 14, and pr = 22.8. diagonals pr¯¯¯¯¯ and qs¯¯¯¯¯ intersect at point t. what is the length of tq¯¯¯¯¯? a.7b.9c.11.4d.22.8
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Geography, 23.06.2019 14:30
Why slip off slopes are found on the inside of meanders? why river cliffs are found on the outside of meanders?
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Geography, 23.06.2019 20:40
Less developed nations have low literacy rates. true or false
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Hydrology question: an urban drainage canal reaches flood stage each summer with relative frequency...
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