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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(A=0,36x350+1,2x20x3+36x4,5\)
\(A=0,36x3,5x100+1,2x2x10x3+36x4,5\)
\(A=36x3,5+36x2+36x4,5\)
\(A=36x\left(3,5+4,5+2\right)\)
\(A=36x10=360\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{17,8.3,7-7,8.4,8+5,7.17,8-4,6.7,8}{11,2+12,3+13,4-12,6-11,5-10,4}\)
\(=\frac{17,8\left(3,7+5,7\right)-7,8\left(4,8+4,6\right)}{\left(13,4-12,6\right)+\left(12,3-11,5\right)+\left(11,2-10,4\right)}\)
\(=\frac{17,8.9,4-7,8.9,4}{0,8+0,8+0,8}\)
\(=119,1\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a: \(=\dfrac{\left(1.6-1.6\right)\cdot\left(2.29-0.76\right)}{1.6+2.53}\cdot\dfrac{3.06:7.5+3.4\cdot0.38}{19-2.6\cdot0.5}=0\)
b: \(=\dfrac{17.8\cdot9.4-7.8\cdot9}{3-0.3\cdot0.3}=\dfrac{97.12}{2.4}=\dfrac{607}{15}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a: =15+11,2=26,2
b: =-3
c: =-1,9-0,02=-1,92
d: =103-96-0,08=7-0,08=6,92
e: =15-0,99=14,01
f: -0,707+2,3=1,593
p: =8,26-25,14-8,26=-25,14
q: =-5,4(3,6+6,4)
=-5,4*10=-54
o: =12,7+(-7)
=5,7
m: =19,7-9=10,7
là 3 đó nha
k mk mk k lại