<span>2686QZWXRDCYGBIHJMR'ZHAIB/EVETSRZ
RTH</span>
Пошаговое объяснение:
7/3+25/100=700/300+75/300=775/300=
775/300*12/100= 775/25*1/100=
=31/1*1/100=0,31
1)
19Х=76| :19
Х=4
2)
32Х=128 |:32
Х=4
3) 560\Х=8 |:560
Х=0.014
1) ДА
2) Пусть D и E - проекции точек A и B на плоскость
![\alpha[\tex].\\[tex]|AB| = 12\\|AE|=14\\|BD|=20\\|BC|=6\\ \angle BAC = 30^o =\ \textgreater \ \angle BAE = 120^o \\ \angle AED = 90^o \\ \angle EDB = 90^o \\ \angle DBA = 60^o \\ |AC|= 6\sqrt{3}\\P=|AB|+|BD|+|DE|+|EA|=12+20+6\sqrt{3}+14=36+6\sqrt{3}](https://tex.z-dn.net/?f=%5Calpha%5B%5Ctex%5D.%5C%5C%5Btex%5D%7CAB%7C+%3D+12%5C%5C%7CAE%7C%3D14%5C%5C%7CBD%7C%3D20%5C%5C%7CBC%7C%3D6%5C%5C+%5Cangle+BAC+%3D+30%5Eo+%3D%5C+%5Ctextgreater+%5C++%5Cangle+BAE+%3D+120%5Eo++%5C%5C+%5Cangle+AED+%3D+90%5Eo+%5C%5C+%5Cangle+EDB+%3D+90%5Eo+%5C%5C+%5Cangle+DBA+%3D+60%5Eo+%5C%5C+%7CAC%7C%3D+6%5Csqrt%7B3%7D%5C%5CP%3D%7CAB%7C%2B%7CBD%7C%2B%7CDE%7C%2B%7CEA%7C%3D12%2B20%2B6%5Csqrt%7B3%7D%2B14%3D36%2B6%5Csqrt%7B3%7D+)
Розв'язання на фото
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