It’s rational, for a number to be rational you have to be able to write it as a fraction and you can write 0.515115111511115111115... as a fraction.
Answer:
Option A.
Step-by-step explanation:
The given expression is
![\dfrac{\sqrt[7]{x^2}}{\sqrt[5]{y^3}}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Csqrt%5B7%5D%7Bx%5E2%7D%7D%7B%5Csqrt%5B5%5D%7By%5E3%7D%7D)
where, 
.
We need to find the expression which is equivalent to the given expression.
The given expression can be rewritten as
![[\because \sqrt[n]{x}=x^{\frac{1}{n}}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csqrt%5Bn%5D%7Bx%7D%3Dx%5E%7B%5Cfrac%7B1%7D%7Bn%7D%7D%5D)
![[\because (a^m)^n=a^{mn}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%28a%5Em%29%5En%3Da%5E%7Bmn%7D%5D)
![[\because a^{-n}=\dfrac{1}{a^n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20a%5E%7B-n%7D%3D%5Cdfrac%7B1%7D%7Ba%5En%7D%5D)
Therefore, the correct option is A.
<span>So L = x-4, W = x-4, H = x
Volume = length * width * height
V = L * W * H
V = (x-4)*(x-4)*x
V = ???
</span>x is the height, so x-4 is the length and also the width since <span>length and a width of 4in. less than the height</span>
Answer:
No. The results of the survey cannot be generalized to the population of all customers of the shopping mall.
Step-by-step explanation:
Survey results are biased, because data is collected from customers who came trough one specific door of the mall.
Some of the customers <em>may be using some other door </em>where satisfaction survey is not given to these people while passing the door.
Therefore survey results does not reflect thoughts of the population of all customers.
