Which statement is correctly written as a conditional statement?
a number, such as 10, is a c...
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Mathematics, 26.09.2019 05:00 gggggggggggg5496
Which statement is correctly written as a conditional statement?
a number, such as 10, is a composite number because it is even.
if the number 10 is an even number, then it is a composite number.
the number 10 is an even number or it is a composite number.
the number 10 is an even number when it is a composite number.
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Answers: 2
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Mathematics, 20.06.2019 18:04
Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?
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