A yes because it’s right and I got it right
Answer: r = 5
Steps:
![a_n=ar^{n-1}](https://tex.z-dn.net/?f=a_n%3Dar%5E%7Bn-1%7D)
1. add Values to formula
![1250=2r^{5-1}](https://tex.z-dn.net/?f=1250%3D2r%5E%7B5-1%7D)
2. get r alone
➜ ![625= r^4](https://tex.z-dn.net/?f=625%3D%20r%5E4)
3. get rid of the exponents
➜ ![\sqrt[4]{625}= r=5](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B625%7D%3D%20r%3D5)
r = 5
Answer:
These are parallel lines. Which means they're (Inconsistent)
Phytagoras Theorem :
x² = 12² + 9²
x² = 144 + 81
x² = 225
x = √225
x = <u>15</u>
So, the value of x is 15 (C)
<em>Hope it helps and is useful</em><em> </em><em>:</em><em>)</em>