![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
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
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:40
Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
-3n+7=-41 what is the answer...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 02:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 26.02.2021 02:00
![question](/tpl/images/cats/biologiya.png)
Biology, 26.02.2021 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 02:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 02:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 02:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 26.02.2021 02:00