Only part B and C . please help.

Mathematics

1 answer:

Stels [109]3 years ago

3 0

Answer:

Step-by-step explanation:

To determine if the given values are part of a right-angled triangle, we need to use the Pythagorean theorem, removing one of the variables, and if it results in the neglected value, it is a right-angled triangle.

$a^2+b^2=c^2\\$

$21^2+24^2=c^2\\c=31.9$

DEF is not a right triangle.

$7.1^2+2.4^2=c^2\\c=7.5$

GHI is a right triangle.

<em>Hope this helped! If you need more help with the practice, please comment below. Have a good day!</em>

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Alex73 [517]

Answer:

a) r ⋀~p

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Step-by-step explanation:

To solve this question we will make use of logic symbols in truth table.

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Fist part of the statement is correct and so it will be "r". Second part of the statement is a negation and will be denoted by ~p. Since both statements are joined together in conjunction, we will use the conjuction symbol in between them which is "⋀" Thus, we have; r ⋀~p

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C) correct symbol is ~r ⟶ ~q

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