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Bad White [126]
2 years ago
7

Helpppppppppppppp please someone

Mathematics
1 answer:
storchak [24]2 years ago
6 0

Answer:

16

Step-by-step explanation:

7x-5+4x-7+x=180

        11x-12+x= 180

          12x-12=180

               +12 = +12

                 12x = 192

                   / 12    / 12

                          = 16                

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Answer:

The answer is: the satement is FALSE.  

Step-by-step explanation:

The first step is to transform the propositons in the statement into symbols:

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So now, we are going to replace the logical connectives on the statement:

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There is a hierarchy in logical connectives, first we evaluate those inside brackets. The principal connective is evaluated at the end. In this particular case, the principal connective is the conditional.

As we have five different propositions, the combinations are given by the following rule:

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32 different combinations  

In figure 1, added bellow, it shows the construction of truth table.

In figure 2, added bellow, it shows the development of the truth table. In the development, we don't have as a result a tautology, therefore the statement is FALSE.  

Download pdf
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
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