Mathematics, 20.02.2021 01:00, boss1373
Are x + 4 and 2 (x + 2) equivalent expressions? Explain your reasoning
Answers: 3
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?
Answers: 2
Mathematics, 21.06.2019 18:20, ellenharley7
What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7
Answers: 1
Mathematics, 21.06.2019 22:00, LilFabeOMM5889
In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in
Answers: 1
Are x + 4 and 2 (x + 2) equivalent expressions? Explain your reasoning...
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