So we have 0.1777777...
let x=0.1777...
then 100x=17.7777 and 10x=1.7777 upon subtraction of the 10x from 100x you get:
100x-10x=17.777-1.777
90x=16
x=16/90
x=8/45
The question is incomplete without the diagram.
Answer:
Icosahedron + Tetrahedron
Octahedron +Tetrahedron
Step-by-step explanation:
Polyhedron 1: Solid:_Icosahedron__ Number: __1___
Solid:_Tetrahedron____ Number: _20____
Polyhedron 2: Solid:___Octahedron__ Number: __1___
Solid:__Tetrahedron___ Number: __8___
Change the mixed fractions to an improper fraction.
4 5/7 = 32/7
1 6/7 = 13/7
Now you can easily subtract since both fractions have common denominators
32/7 - 13/7
(Think: 32 - 13 = 19)
Change the improper fraction to a mixed fraction
19/7 = 2 5/7
Answer: 2 5/7
Hope I helped =)
X+2 over x-3. Hope this helps
<YWX=30°; YX=80÷2=40
WX²+40²=80²
WX²=6,400-1,600
WX=√4,800=√(4×4×4×25×3)=40√3