Answer:
y= -5/4
Step-by-step explanation:
download a app called math papa. it's a great cheat cheat for these types of problems
Answer:
Dude
Step-by-step explanation:
There's nothing here
Answer:
{-1, 0,5}
Step-by-step explanation:
9514 1404 393
Answer:
geometric sequence
Step-by-step explanation:
The terms of the sequence have a common ratio of -12/3 = -4, so the sequence is geometric. The general term is ...
an = 3(-4)^(n-1)
so the sum can be written as ...

(Note the summation starts at n=0, corresponding to a first term of 3.)