Answer:
2. a1 = 10 and an = a(n-1) + 2
Step-by-step explanation:
10 is our first term so it would be a of 1.
Then, in this arithmetic sequence, it is increasing by 2.
So, therefore our recursive formula for this arithmetic sequence would be:
a(n) = a(n-1) + 2
The answer is 19/3. Hope this helps!
Answer:
X would equal 4
Step-by-step explanation:
5 x 4 is 20. And the equation was 5x + 1 = 21.
So, the answer would equal 20. Hope this helped!! :D