1)
a)f(0)=9*0+2=2
b)f(-2)=9*(-2)+2=-18+2=-16
d)f(1/3)=9*1/3+2=5
c)f(a-1)=9*(a-1)+2=9a-9+2=9a-7
2)
a) g(2a)=7*2a+3=14a+3
b) g(a+1)=7(a+1)+3=7a+7+3=7a+10
d) g(a+4)=7(a+4)+3=7a+28+3=7a+31
c) g(a-2)=7(a-2)+3=7a-14+3=7a-11
=(1,2*(1/36+1/ 25/100)- 1 5/16) : 169/24=
(1,2*(1/36+100/25) - 21/16) : 169/24=
(12/10* 4 1/36 - 21/16) : 169/24=
(12/10 * 145/36 - 21/16) : 169/24=
(29/2*3 - 21/16) : 169/24 =
(29/6-21/16) : 169/24=
(29*8/48 - 21*3/48) : 169/24=
(232/48 - 63/48) : 169/24=
169/48 : 169/24=
169/48 * 24/169=
= 24/48= 1/2= 0,5
3 метра
1 метр -10 дм
50-20=30дм
30дм-3метра