Subtract b and then a = (zma) - b
The answer is b because 95 confidence is interval for the mean lifespan
Answer:
- 1 and 16
- 0 and 20
- 3 and 8
- 5 and 0
Step-by-step explanation:
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.
