54 + х = 108 - 23
54 + х = 85
х = 85 - 54
х = 31
Удачи)
5-х=4х-12
17=5х
х=17/5
х=3.4
РЕШИТЕ ПЖ ВЫРАЗИТЕ В РАДИАННОЙ МЕРЕ ВЕЛЕЧИНЫ УГЛОВ С ГРАДУСАМИ 45,36,180,60,72,270.120,310,360,150,216,90
Надежда-2
45°= 45*π/180 = π/4
36°=36*π/180 = π/5
180°=π
60°=60*π/180 = π/3
72° = 72*π/180 = 2π/5
270° = 270*π/180 = 3π/2
120° = 120*π/180 = 2π/3
310° = 310*π/180 = 31π/18
360° = 2π
150° = 150*π/180 = 5π/6
216° = 216*π/180 = 6π/5
90° = π/2
-8+3+(-1)=-6
8+(-9)+(-7)=-8
-4+8+(-9)+3=-2
-7+(-2)+(-10)=-19
8+(-10)+(-12)+3=-11
<span>-3+(-4)+(-5)+(-6)=-18</span>
3/5+7.9= 8.5 или 8 цел 1/2