hi please help me
Find the sum of the first 8 terms of the arithmetic sequence 30, 33, 36, 39, 42, 45, . . .
thank you...
4 answers
I can help you kid. I need to do the math. The answer is 225. Welcome
as always,
Sn = 8/2 (2a+(n-1)d)
So in this case,
S8 = 8/2 (2*30 + 7*3)
Looks like you need to do the math, 2pi! How did you get 225?
Sn = 8/2 (2a+(n-1)d)
So in this case,
S8 = 8/2 (2*30 + 7*3)
Looks like you need to do the math, 2pi! How did you get 225?
I added them up! That's what the problem said.
So what is the final answer?
1 answer