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irina1246 [14]
3 years ago
7

There are 15 boys and 16 girls in Gabriel’s class. One person is chosen at random. What is the probability that the person chose

n to hand out books is a girl?
Mathematics
1 answer:
aalyn [17]3 years ago
7 0

Answer:

16/31

Step-by-step explanation:

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Which of the following are valid (necessarily true) sentences? a. (∃x x = x) ⇒ (∀ y ∃z y = z). b. ∀ x P(x) ∨ ¬P(x). c. ∀ x Smart
Phantasy [73]

Answer:

b; ∀x   P(x) ∨ ¬P(x)

Step-by-step explanation:

Suppose that we have a proposition p

Such that p can be true or false.

We can define the negation of p as:

¬p

Such that, if p is false, then ¬p is true

if p is true, then ¬p is false.

Also remember that a proposition like:

p ∨ q

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Then if we write:

p ∨ ¬p

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Then the statement is true.

And if the statement depends on some variable, then we will have that:

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from this, we can conclude that the statement that is always true is:

b; ∀x   P(x) ∨ ¬P(x)

Where here we have:

For all the values of x,   P(x)  ∨ ¬P(x)

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2 years ago
In the 30-60-90 triangle below, side s has a length of Blank and the hypotenuse has a length of blank?
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There are some calculator shortcuts that can be used on a Windows OS and they are:

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3p² - 2p - 5 = 0

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Hope this helps!
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Why is apr an important tool for consumers
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