9514 1404 393
Answer:
4/25
Step-by-step explanation:
Put the numbers where the letters are and do the arithmetic.
![\left(2\cdot\dfrac{-1}{2}\cdot\dfrac{2}{5}\right)^2=\left(\dfrac{-2}{5}\right)^2=\dfrac{(-2)^2}{5^2}=\boxed{\dfrac{4}{25}}](https://tex.z-dn.net/?f=%5Cleft%282%5Ccdot%5Cdfrac%7B-1%7D%7B2%7D%5Ccdot%5Cdfrac%7B2%7D%7B5%7D%5Cright%29%5E2%3D%5Cleft%28%5Cdfrac%7B-2%7D%7B5%7D%5Cright%29%5E2%3D%5Cdfrac%7B%28-2%29%5E2%7D%7B5%5E2%7D%3D%5Cboxed%7B%5Cdfrac%7B4%7D%7B25%7D%7D)
3/6x+9=8
3x+9=8
3x=-1
x= -1/3
A cubic yard is equal to 27 cubic feet.
And one cubic yard is 2 tons.
Answer:
<h2>12</h2>
Step-by-step explanation:
Hi!
Here is your answer,
I will explain in step by step,
![{x}^{9} = {12}^{2} \times {12}^{7}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B9%7D%20%20%3D%20%20%7B12%7D%5E%7B2%7D%20%20%5Ctimes%20%20%7B12%7D%5E%7B7%7D%20%20)
Here we can simplify this further using this law,
![{a}^{m} \times {a}^{n} = {a}^{m + n}](https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7Bm%7D%20%20%5Ctimes%20%7Ba%7D%5E%7Bn%7D%20%3D%20%20%7Ba%7D%5E%7Bm%20%2B%20n%7D%20)
So we will get,
![{x}^{9} = {12}^{7 + 2} \\ {x}^{9} = {12}^{9}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B9%7D%20%20%3D%20%20%7B12%7D%5E%7B7%20%20%2B%202%7D%20%20%5C%5C%20%20%7Bx%7D%5E%7B9%7D%20%3D%20%20%7B12%7D%5E%7B9%7D%20%20)
Since the powers are same we can cancel it out and we will get,
![x = 12](https://tex.z-dn.net/?f=x%20%3D%2012)
(Hope this answer helped :))