Mathematics, 03.09.2020 02:01, shakkahdbwjsjs3068
If x = 2 and y = −3, then −x y² = A) −36 B) −18 C) −12 D) 12 E) 18
Answers: 2
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 23:00, youngaidan21
The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)
Answers: 1
Mathematics, 22.06.2019 00:00, jadfavors4321
Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj:
Answers: 1
If x = 2 and y = −3, then −x y² = A) −36 B) −18 C) −12 D) 12 E) 18...
Mathematics, 14.04.2020 22:47
Mathematics, 14.04.2020 22:47
Mathematics, 14.04.2020 22:48
Mathematics, 14.04.2020 22:48