Mathematics, 13.07.2019 21:00 niya11057

Which statement is true about this argument ? premises: if a quadrilateral is a square, then the quadrilateral is a rectangle. if a quadrilateral is a rectangle then the quadrilateral is a parallelogram. conclusion: if a quadrilateral is a square, then the quadrilateral is a parallelogram. a. the argument is not valid because the premises are not true. b. the argument is valid by the law of syllogism c. the argument is valid by the law of detachment d. the argument is not valid because the conclusion does not follow from the premises.

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Answer from: armon6720

The statement that is true about this argument is B. The argument is valid by the law of syllogism.

The law of syllogism means that an argument can be based on deductive reasoning. In such a case, there are premises and a conclusion.

A quadrilateral is a shape that has four sides. Therefore, based on the premises given, a quadrilateral is a square, then the quadrilateral is a parallelogram.

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Answer from: ashleyprescot05

It's good to review the laws of syllogism and detachment.

Law of detachment:
Statement 1: If p then q.
Statement 2: p is true.
By the law of detachment, you can conclude "q is true."

Law of syllogism:
Statement 1: If p then q.
Statement 2: If q then r.
By the law of syllogism, you can conclude "If p then r."

Now look at which of the two cases above you have.
Statement 1: If a quadrilateral is a square, then the quadrilateral is a rectangle.
This is "if p then q."

Statement 2:
If a quadrilateral is a rectangle then the quadrilateral is a parallelogram.
This is "if q then r."

You have
If p then q.
If q then r.

This is what you need for the law of syllogism.

That means you can conclude "if p then r", which in this specific case is
"If a quadrilateral is a square, then the quadrilateral is a parallelogram."

The answer is that it is a valid argument by the law of syllogism.

Answer from: Quest

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

Answer from: Quest

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)

= sin(7pi/6 - 2pi/6)

= sin(5pi/6)

= sin(pi - pi/6)

= sin(pi/6)

= 1/2

sin 7pi/6 - sin pi/3

= sin (pi + pi/6) - sin pi/3

= -sin pi/6 - sin pi/3

= -1/2 - sqrt(3)/2

= -(1+sqrt(3))2

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