Answer:
??
Step-by-step explanation:
What are we supposed to do? Find the ... or find that and the sum too
Answer:
-6650
Step-by-step explanation:
14+8+2+...+(-274)+(-280)
c.d d=8-14=-6
[tex]a_{n}=a_{1}+(n-1)d\\-280=14+(n-1)(-6)\\-280-14=(n-1)(-6)\\-294=-6(n-1)\\n-1=\frac{-294}{-6}=49\\n=49+1=50\\number ~of ~terms~n=50\\S_{n}=\frac{n}{2}(a_{1}+a_{n})\\s_{n}=\frac{50}{2}(14+(-280))\\=25 \times (-266)\\=-6650[/tex]
