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3 years ago

Is 19/3 a rational number

Mathematics

2 answers:

Mashcka [7]3 years ago

8 0

Answer:

Yes

Step-by-step explanation:

19/3 is equal to 6.3333 repeating which is rational (repeating decimals are rational)

nexus9112 [7]3 years ago

8 0

Answer:

yes

Step-by-step explanation:

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A college student is taking two courses. The probability she passes the first course is 0.67. The probability she passes the sec

andrezito [222]

Answer:

0.58 = 58% probability she passes both courses

Step-by-step explanation:

We can solve this question treating the probabilities as a Venn set.

I am going to say that:

Event A: She passes the first course.

Event B: She passes the second course.

The probability she passes the first course is 0.67.

This means that $P(A) = 0.67$

The probability she passes the second course is 0.7.

This means that $P(B) = 0.7$

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This means that $P(A \cup B) = 0.79$

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

We use the following relation:

$P(A \cup B) = P(A) + P(B) - P(A \cap B)$

$P(A \cap B) = P(A) + P(B) - P(A \cup B) = 0.67 + 0.7 - 0.79 = 0.58$

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