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2 years ago

15

One pipe can fill a swimming pool in 8 hours. Another pipe takes 12 hours. How long will it take for the two of them to do the j

ob together?

1 answer:

Novosadov [1.4K]2 years ago

6 0

this is the lamest tjing everrrrrrrr

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Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.

oksian1 [2.3K]

Answer:

0.36 = 36% probability that the land has oil and the test predicts it

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

45% chance that the land has oil.

This means that $P(A) = 0.45$

He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil.

This means that $P(B|A) = 0.8$

What is the probability that the land has oil and the test predicts it?

This is $P(A \cap B)$ . So

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

$P(B \cap A) = P(B|A)*P(A) = 0.8*0.45 = 0.36$

0.36 = 36% probability that the land has oil and the test predicts it

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What is the area of a parallelogram that has a base of 12 3/4 in. and a height of 2 1/2 in.?

EleoNora [17]

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3 years ago

What are the coordinates of the point on the directed line segment from (6, -10) to

sveta [45]

Answer:

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(8 3/5, 4 2/5)

Step-by-step explanation:

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What is the value of the value below. <br> 4/5+3/5+3.5*5

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Step-by-step explanation:

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