X=3 , 13-3/16 = 5/8 when simplified
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.
The pattern is plus 10 for each time
Formula recursive
A_n = A_n -1 + 10
So the next term is 5th
A_5 = A_5 -1 + 10
A_5-1 = A_4 +10
5th = 6+10 = 16
I think you can do it for the next 2 terms.
Answer:
c
Step-by-step explanation:
!!!
1. parallelograms
2. triangles
3. trapezoids
4. Circles
