Answer: ty
Step-by-step explanation:
Answer:
x=(-2/3)
Step-by-step explanation:
(9x+13)^2=49
√(9x+13)^2=√49
9x+13=7
9x+13-13=7-13
9x=-6
9x÷9=-6/9
x=-6/9
-6/9=-2/3
If i were you, I would just plug these into my calculator.
1. 1.587
2. 11.469
3. 6.503
4. 1.81
5. 28.984
![\frac{15}{8} = \frac{80}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B15%7D%7B8%7D%20%3D%20%5Cfrac%7B80%7D%7Bx%7D%20)
At this point in time, you can use a technique called cross-mutiplication, where you say that
![15*80=8x](https://tex.z-dn.net/?f=15%2A80%3D8x)
, and
![1200=8x](https://tex.z-dn.net/?f=1200%3D8x)
at this point in time, you can devide each side by 8 and solve
-----98 with any quantity of any digits before the 9 .