1) 23+20+26=69
2) 69:3=23
ОТВЕТ: средняя температура 23°
6*10 5/6-1/2*3 3/5=6/1*65/6-1/2*18/5=65/1-9/5=325/5-9/5=316/5=63 1/5
43423
2797899999999999999999999999999999999999999999
<span>|-8+x| = 10.
-8+x=10
x=18
-8+x=-10
x=-2
|-11 -c|= 36
-11-c=36
c=-47
-11-c=-36
c=25
|-c -18| = 23
-c-18=23
c=-41
-c-18=-23
c=5
|-15 +p|= 62
-15+p=62
p=77
-15+p=-62
p=-47
|-p - 29| = 91
-p-29=91
p=-110
-p-29=-91
p=62</span>
<span>y'=(sin3x)'*(3x)'=cos3x*3=3cos3x вроде эта</span>