Answer:
a. a(b)c
b. a(a(b)c)c
d. a(a(a(a)c)c)c
Step-by-step explanation:
We are given the following in the question:
![a,b,c \in W\\\text{If } x \in W \Rightarrow a(x)c \in W](https://tex.z-dn.net/?f=a%2Cb%2Cc%20%5Cin%20W%5C%5C%5Ctext%7BIf%20%7D%20x%20%5Cin%20W%20%5CRightarrow%20a%28x%29c%20%5Cin%20W)
a. a(b)c
It is given b belongs to W.
![b \in W\\\Rightarrow a(b)c \in W](https://tex.z-dn.net/?f=b%20%5Cin%20W%5C%5C%5CRightarrow%20a%28b%29c%20%5Cin%20W)
b. a(a(b)c)c
![a(b)c \in W\\\Rightarrow a(a(b)c)c \in W](https://tex.z-dn.net/?f=a%28b%29c%20%5Cin%20W%5C%5C%5CRightarrow%20a%28a%28b%29c%29c%20%5Cin%20W)
c. a(abc)c
a(abc)c does not belong to W because we cannot find x in W such that a(abc)c belongs to W.
d. a(a(a(a)c)c)c
![a \in W\\\Rightarrow a(a)c \in W\\\Rightarrow a(a(a)c)c \in W\\\Rightarrow a(a(a(a)c)c)c](https://tex.z-dn.net/?f=a%20%5Cin%20W%5C%5C%5CRightarrow%20a%28a%29c%20%5Cin%20W%5C%5C%5CRightarrow%20a%28a%28a%29c%29c%20%5Cin%20W%5C%5C%5CRightarrow%20a%28a%28a%28a%29c%29c%29c)
e. a(aacc)c
a(aacc)c does not belong to W because we cannot find x in W such that a(aacc)c belongs to W.
Answer:
C. 60
Step-by-step explanation:
60+10=70
Do you still need help with this if so graphes have a bigger letter and a smaller letter
Answer:
x = -1/2
Step-by-step explanation:
4x - 6 = 10x - 3
+6 +6
4x = 10x + 3
-10x -10x
-6x = 3
/-6 /-6
x = -1/2