80 is the number you just divided 10 with??
Answer:
6554
Step-by-step explanation:
The sequence 2, -8, 32, -128 has a first term (a1) of 2 and a common ratio (r) of -8/2 = -4. The sum of n terms is given by ...
Sn = a1·(r^n -1)/(r -1)
For your sequence, the sum of 7 terms is ...
S7 = 2·((-4)^7 -1)/(-4-1) = 2(-16384/-5) = 6554
The sum of changes after the 7th day is 6554.
My Favorite paring from BNAH has to be Honestly be Kirishima and Bakugou cause Kiri and Baku have made such an amazing bond over the time of the anime also I would Love to know yours and your opinion. Peace out
:P :D
Answer:
what are the options?
Step-by-step explanation:
Combine the terms with j, so -7j+3 would be left.
