Mathematics, 22.06.2019 08:30 ronny80
Here are the coordinates for eight points on the coordinate plane (q > p > 0): a (0, 0), b (p, 0), c (q, 0), d (p + q, 0), e (0, q), f (p, q), g (q, q), and h (p + q, q). which four points, if any, are on the vertices of a square?
Answers: 3
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?
Answers: 2
Mathematics, 21.06.2019 15:00
In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4
Answers: 1
Mathematics, 21.06.2019 17:00
Let f(x)=2x and g(x)=2x. graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ?me asap
Answers: 2
Mathematics, 21.06.2019 18:00
Give all possible names for the line shown.calculation tip: lines can be written with either point first.
Answers: 1
Here are the coordinates for eight points on the coordinate plane (q > p > 0): a (0, 0), b...
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