16= 7+8; 8+8
14= 6+7; 5+9; 8+6
11= 5+6; 4+7; 8+3; 5+6
-6/17<x<-5/17 умнож на 2
-12/34<x<-10/34 х1 = -11/34
умнож на 3
-18/51<x<-15/51 x2= -17/51=-1/3
Ответ -11/34, - 1/3
Длинна = 2*пи*R=2*3.14*5=31.4
A-42=49
a=49+42=91
(61-25)+b=94
36+b=94
<span>b=94-36=58</span>
9 16/51-х=4 11/17
х=9 16/51-4 11/17
х=9 16/51-4 33/51
х=8 67/51-4 33/51
х=4 34/51
х=4 2/3