Answer:
[tex] a_{100} = 387 [/tex]
Step-by-step explanation:
I think the first term is -9.
Then each term is 4 more than the previous term.
The constant difference is 4. d = 4.
[tex] a_n = a_{n - 1} + 4 [/tex]
[tex] a_1 = -9 [/tex]
For n ≥ 2,
[tex] a_n = -9 + (n - 1)d [/tex]
[tex] a_{100} = -9 + (100 - 1)(4) [/tex]
[tex] a_{100} = 387 [/tex]
