Question

Write an equation for the nth term of the arithmetic sequence. Then find a10 a 10 . −3,−6,−9,−12,... − 3 , − 6 , − 9 , − 12 , . . .

Answer 1

Answer:

-30

Step-by-step explanation:

Since the first term is -3 and the common difference is 3, the equation for the nth term is $-3-3(n-1)$ (Test it out!).

Therefore, the 10 term will be $-3-3(10-1)$ which is $-3-3(9)$ which simplifies to $-3-27$ which results in $-30$.

Hope this helps :)