29 and 12! 29 + 12 comes out to 41 and 29 - 12 comes out to 17. I hope this helps!!
This is easy
69 because it says after two shoveling jobs he starts to get 9 pennies a job the first two jobs were only worth 3 pennies each so 3+3=6 so 6+9x7=69
can you mark me the brainliest
I HOPE I HELPED ;P
1.) 32.89
2.) 480
3.) 14
4.) 25.2
Hope this helps! Can I please have brainliest?
Given:
The geometric sequence is:
![\dfrac{7}{9},\dfrac{-7}{3},7,-21,63,...](https://tex.z-dn.net/?f=%5Cdfrac%7B7%7D%7B9%7D%2C%5Cdfrac%7B-7%7D%7B3%7D%2C7%2C-21%2C63%2C...)
To find:
The 9th term of the given geometric sequence.
Solution:
We have,
![\dfrac{7}{9},\dfrac{-7}{3},7,-21,63,...](https://tex.z-dn.net/?f=%5Cdfrac%7B7%7D%7B9%7D%2C%5Cdfrac%7B-7%7D%7B3%7D%2C7%2C-21%2C63%2C...)
Here, the first term is:
![a=\dfrac{7}{9}](https://tex.z-dn.net/?f=a%3D%5Cdfrac%7B7%7D%7B9%7D)
The common ratio is:
![r=\dfrac{a_2}{a_1}](https://tex.z-dn.net/?f=r%3D%5Cdfrac%7Ba_2%7D%7Ba_1%7D)
![r=\dfrac{\dfrac{-7}{3}}{\dfrac{7}{9}}](https://tex.z-dn.net/?f=r%3D%5Cdfrac%7B%5Cdfrac%7B-7%7D%7B3%7D%7D%7B%5Cdfrac%7B7%7D%7B9%7D%7D)
![r=\dfrac{-7}{3}\times \dfrac{9}{7}](https://tex.z-dn.net/?f=r%3D%5Cdfrac%7B-7%7D%7B3%7D%5Ctimes%20%5Cdfrac%7B9%7D%7B7%7D)
![r=-3](https://tex.z-dn.net/?f=r%3D-3)
The nth term of a geometric sequence is:
![a_n=ar^{n-1}](https://tex.z-dn.net/?f=a_n%3Dar%5E%7Bn-1%7D)
Where, a is the first term and r is the common ratio.
Substitute
to find the 9th term.
![a_9=\dfrac{7}{9}(-3)^{9-1}](https://tex.z-dn.net/?f=a_9%3D%5Cdfrac%7B7%7D%7B9%7D%28-3%29%5E%7B9-1%7D)
![a_9=\dfrac{7}{9}(-3)^{8}](https://tex.z-dn.net/?f=a_9%3D%5Cdfrac%7B7%7D%7B9%7D%28-3%29%5E%7B8%7D)
![a_9=\dfrac{7}{9}(6561)](https://tex.z-dn.net/?f=a_9%3D%5Cdfrac%7B7%7D%7B9%7D%286561%29)
![a_9=5103](https://tex.z-dn.net/?f=a_9%3D5103)
Therefore, the 9th term of the given geometric sequence is 5103.
Answer:
= 14q
Step-by-step explanation:
21q - 7q
= 14q
(3q - p) (7)
= 21q - 7q
= 14q