Question

Is 343 in the sequence below
-5,-2,1,4,7

Answer 1

Yes hope this helps. Have a good day

Answer 2

yes

Explanation:

a= -5

d= -2 -(-5)=3

so, 343 = a + (n-1) 3

343 = -5 (n-1) 3

343 = -5 + 3n - 3

343 = 3n

n = 117

hope this helped