20% have an A because 1/5 of 100 is 20
Answer:
125.8983
Step-by-step explanation:
Use the formula for volume of a cone: v= (1/3)(3.14)(radius squared)(height) so v = (1/3)(3.14)(20.25)(6) = 125.8983
For this case we must find the quotient of the following expression:
![\frac {\frac {x} {x-1}} {\frac {1} {x + 1}}](https://tex.z-dn.net/?f=%5Cfrac%20%7B%5Cfrac%20%7Bx%7D%20%7Bx-1%7D%7D%20%7B%5Cfrac%20%7B1%7D%20%7Bx%20%2B%201%7D%7D)
Applying double C we have the following expression:
![\frac {x (x + 1)} {x-1} =](https://tex.z-dn.net/?f=%5Cfrac%20%7Bx%20%28x%20%2B%201%29%7D%20%7Bx-1%7D%20%3D)
Applying distributive property to the terms within the parentheses of the numerator we have:
![\frac {x ^ 2 + x} {x-1}](https://tex.z-dn.net/?f=%5Cfrac%20%7Bx%20%5E%202%20%2B%20x%7D%20%7Bx-1%7D)
Thus, the quotient is given by option A
Answer:
Option A