Answer:
Hello, are there any options???
ANSWER
A

EXPLANATION.
The given function is

Let

Solve for x.


Take cubic root of both sides,
![x = \sqrt[3]{ \frac{1}{2} y - \frac{21}{2} }](https://tex.z-dn.net/?f=x%20%3D%20%5Csqrt%5B3%5D%7B%20%20%5Cfrac%7B1%7D%7B2%7D%20y%20-%20%20%5Cfrac%7B21%7D%7B2%7D%20%7D%20)
x is defined for all real values of y.
The range refers to the values of y, for which x is defined.
Hence the range is all real numbers.
In interval notation, we write this as,

The correct choice is A.
Q is a letter and 8 is a number
We are given
Tobias dropped a tennis ball from a height of 60 meters. The time in seconds it takes for the ball to fall 60 feet is 0.25(radical60).
so, time is

we have to approximate it's value
First approximation set:
we know that

we can take sqrt all the sides

we can simplify it

Divide all sides by 4

Second approximation set:

Divide all sides by 4


Third approximation set:

Divide all sides by 4


so, we get
......Answer