Wheres the photo dude I wanna see it too! UwU
Step-by-step explanation:
![= \sum \limits_{n = 1}^{7} ( - 2. {6}^{n - 1} )](https://tex.z-dn.net/?f=%20%3D%20%20%5Csum%20%5Climits_%7Bn%20%20%3D%201%7D%5E%7B7%7D%20%28%20-%202.%20%7B6%7D%5E%7Bn%20-%201%7D%20%29)
![= \sum \limits_ {n = 1}^{n_{ \text{max}}} (a_1. {r}^{n - 1} )](https://tex.z-dn.net/?f=%20%3D%20%20%5Csum%20%5Climits_%20%7Bn%20%3D%201%7D%5E%7Bn_%7B%20%5Ctext%7Bmax%7D%7D%7D%20%28a_1.%20%7Br%7D%5E%7Bn%20-%201%7D%20%29)
![\:](https://tex.z-dn.net/?f=%20%5C%3A%20)
![a_1 = - 2](https://tex.z-dn.net/?f=a_1%20%3D%20%20-%202)
![n = 7](https://tex.z-dn.net/?f=n%20%3D%207)
![r = 6 \to r >1](https://tex.z-dn.net/?f=r%20%3D%206%20%5Cto%20r%20%20%3E1)
![\:](https://tex.z-dn.net/?f=%20%5C%3A%20)
• Find S7.
![s_n = a_1.( \frac{ {r}^{n} - 1}{r - n} )](https://tex.z-dn.net/?f=s_n%20%3D%20%20a_1.%28%20%5Cfrac%7B%20%7Br%7D%5E%7Bn%7D%20%20-%201%7D%7Br%20-%20n%7D%20%29)
![s_7 = - 2.( \frac{ {6}^{7} - 1 }{6 - 1} )](https://tex.z-dn.net/?f=s_7%20%3D%20%20-%202.%28%20%5Cfrac%7B%20%7B6%7D%5E%7B7%7D%20-%201%20%7D%7B6%20-%201%7D%20%29)
![s_7 = - 2.( \frac{279.936 - 1}{5} )](https://tex.z-dn.net/?f=s_7%20%3D%20%20-%202.%28%20%5Cfrac%7B279.936%20-%201%7D%7B5%7D%20%29)
![s_7 = - 2.( \frac{279.935}{5} )](https://tex.z-dn.net/?f=s_7%20%3D%20%20-%202.%28%20%5Cfrac%7B279.935%7D%7B5%7D%20%29)
![s_7 = - 2 \: . \: 55.987](https://tex.z-dn.net/?f=s_7%20%3D%20%20-%202%20%5C%3A%20.%20%5C%3A%2055.987)
![s_7 = - 111.974](https://tex.z-dn.net/?f=s_7%20%3D%20%20-%20111.974)
The answer is B.
Answer:
1) P(tacos)= 10/30= 1/3
2) P(Pizzas)=18/30 =3/5
3) P(T AND P)= 5/30= 1/6
4) P(T OR P)= P(T) +P(P) - P(T AND P)
= 10/30 +18/30 -5/30
= 23/30
![\frac{n}{12}=10](https://tex.z-dn.net/?f=%5Cfrac%7Bn%7D%7B12%7D%3D10)
Multiply both sides of the equation by 12
![\frac{n}{12}\times12=10\times12](https://tex.z-dn.net/?f=%5Cfrac%7Bn%7D%7B12%7D%5Ctimes12%3D10%5Ctimes12)
Answer:
(-1, 3)
Step-by-step explanation:
x - 5y = -16 [Equation 1]
-x + 3y = 10 [Equation 2]
<u>Adding both equations</u>
- x - x - 5y + 3y = -16 + 10
- -2y = -6
- y = 3
- x - 5(3) = -16
- x - 15 = -16
- x = -1
<u>Solution</u> : (-1, 3)