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2 years ago

-2-(-7)= help me pls.

Mathematics

2 answers:

olchik [2.2K]2 years ago

6 0

Answer:

$- 2 - ( - 7) \\ = - 2 + 7 \\ = 5$

Tju [1.3M]2 years ago

4 0

Answer:

Step-by-step explanation:

-2-(-7)

-2 + 7

= 5

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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.

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This means that $P(A) = 0.67$

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

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

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2 years ago