(4-<u /><span>√2)²+4√8= 4</span>² -2 *(4-√2)+(√2)²+4√8=16-8+2√2+2+4√8= 10 + 2√2+8√2=10+10√2= =10(1+√2)
(0,81:2,7)+(4,5*0,12)=0,3+0,54=0,84
ОТВЕТ: 0,84
220000:100=2200
1%-2200
8%=8*2200=17600
18%=2200*10=22000+17600=39600
25%=220000:4=55000
60%=132000
75%=165000
95%=209000
1) -7,4 + 4,9 = -2,5
2) 6,7 + (-5,4) = 1,3
3 ) -3,8 + (4,2) = 0,4
4) -9,2 + 9,2 = 0
5) -5/6 + 3/8 = -20/24 + 9/24 = - 11/24
6) (-3 5/7 ) + (-2 3/8) = (-3 40/56 ) + (-2 21/56) = - (3+2) - (40/56 + 21/56) = -5 61/56 = -6 5/56
7) -4,7 - (-8,2) = 3,5
8) 3,4 - (-12,8) = 16,2
9) 6,7 - 10 = -3,3
10) -2,4 - 5,9 = -8,3
11) 2/5 - 14/25 = 10/25 - 14/25 = - 4/25
12) -4 5/12 - 2 5/9 = -4 15/36 - 2 20/36 = - (4+2) - (15/36 + 20/36) = -6 35/36