Answer:
Step-by-step explanation:
Given
diameter of pie is 
radius 
If child divides pie into 12 equal parts then each part subtends an angle of
at the center
and crust length of single piece is
For two slice length is 
Thus the total length of crust eaten is 
Answer:
y=⅘x-2
Step-by-step explanation:
8x-10y=20
-10y=-8x+20
y=⅘x-2
Answer:
40
Step-by-step explanation:
(6 + 2i)(6 - 2i)=40
Answer: Is reinforced with other material
Step-by-step explanation:
The options are:
A is expensive to build.
B usually cracks under heavy weights.
C looks like any other road.
D is reinforced with other material.
The passage best supports the statement that a concrete road are reinforced with other material. According to the information given in the passage, steel plays a vital role in keeping the road surface flat.
Steel bars are embedded in concrete so that the stresses cannot crack the slab. Therefore, it indicates that concrete road is reinforced with other material.
