Mathematics, 22.02.2020 21:25 libertycooper

2+2 I en no de aunswrv heep meh pez

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Mathematics, 20.06.2019 18:04, Uc34758

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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Mathematics, 21.06.2019 17:30, allisonlillian

Select the quadratic that has root x = 8 and x = -5

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Mathematics, 21.06.2019 18:40, ethan0

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

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Mathematics, 21.06.2019 19:40, michaellangley

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

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