Hello,
N is closed for an opération(µ) means that
a,b ∈ N : a µ b ∈N (i suppose so)
Answer (1) ex 2/3 ∉ N
Answer (4) ex 2-3 ∉ N
∀ a,b ∈ N: a+b ∈N is true ; not a answer.
∀ a,b ∈ N: a*b ∈N is true ; not a answer.
Assuming that the figure is implying that angles 1 and 2 are the same, we have

So, the measure of angles 1 is

Answer:
3215
Step-by-step explanation:
There is no explanation
Go and increase you Intelligence
Hello.
2 (12x-11) = -4 (1-6x)
24x-22 = -4 + 24x
0 = 18
Undefined would be your answer. Be sure to double check.
Hope that helps.
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Disclaimer: Always double check your answer with a reliable source, as mistakes can be made.
I think the appropriate response is Independent Verification. It is voting machines that create no less than two free auditable records of votes where the second record is utilized to check the first. To be viewed as "free" no less than one of the records must not be editable by the voting machine and be straightforwardly irrefutable by the voter. These frameworks must take into consideration the numerous records to have the capacity to be cross-checked.