The answer to this question is 152,000!
The first term is 2 and the common ratio = -8/2 = -4
S7 = 2 * (-4)^7 - 1
------------- = 6554 answer
-4-1
Answer:
(-5.5, 3)
Step-by-step explanation:
![\left(\frac{-4-7}{2}, \frac{-2+8}{2} \right)=(-5.5, 3)](https://tex.z-dn.net/?f=%5Cleft%28%5Cfrac%7B-4-7%7D%7B2%7D%2C%20%5Cfrac%7B-2%2B8%7D%7B2%7D%20%5Cright%29%3D%28-5.5%2C%203%29)
Answer:
B because if u flip it it still spells PIP
Answer:
First term a = 41
Step-by-step explanation:
Arithmetic Progression:
Common differences d = -2
![S_{n}=\frac{n}{2}(2a+[n-1]d)\\\\S_{20}=\frac{20}{2}(2a+19*[-2])\\\\](https://tex.z-dn.net/?f=S_%7Bn%7D%3D%5Cfrac%7Bn%7D%7B2%7D%282a%2B%5Bn-1%5Dd%29%5C%5C%5C%5CS_%7B20%7D%3D%5Cfrac%7B20%7D%7B2%7D%282a%2B19%2A%5B-2%5D%29%5C%5C%5C%5C)
= 10*(2a - 38)
= 10*2a - 10*38
=20a - 380
![S_{22}=\frac{22}{2}(2a+21*[-2])\\\\](https://tex.z-dn.net/?f=S_%7B22%7D%3D%5Cfrac%7B22%7D%7B2%7D%282a%2B21%2A%5B-2%5D%29%5C%5C%5C%5C)
= 11 (2a -42)
=11*2a - 11*42
= 22a - 462
![S_{22}=S_{20}\\\\](https://tex.z-dn.net/?f=S_%7B22%7D%3DS_%7B20%7D%5C%5C%5C%5C)
22a - 462 = 20a - 380
22a = 20a - 380 + 462
22a = 20a + 82
22a - 20a = 82
2a = 82
a = 82/2
a = 41
First term a = 41