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igor_vitrenko [27]
3 years ago
12

Use distribute property to simplify the expression 5(x+4)

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0
(multiply each term in the parentheses by 5)

5(x+4)

5 x x = 5x

5 x 4 = 20

5x + 20

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Answer:

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The study times in hours for the final exam is modeled as a normal distribution N(24,4). We are required to find the percentage of students study 34 hours or more, or P(X>34).

The values for the cumulative probability are given by tables or digital means like Excel where we can get the left-tail or P(X<Xo). To compute the right-tail or P(X>Xo) we use this relation

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To solve the question, we used:

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