Answer: If f(x)=0 then x is 0. Good luck!
Step-by-step explanation: GIVE ME BRAINLY A VOTE AND A THANKS BYE
the answer would be a or b. Turn on verified mode for professionals to answer)
Each piece is 7 and 1/3 feet long (7 feet 4 inches)
Answer:
the drop in the level of water in the container is 2.03 cm
Step-by-step explanation:
The volume of a cylinder can be written as;
![V = \pi r^2h=\frac{\pi d^2h}{4} \\where;\\r = radius \\h = height \\d = diameter](https://tex.z-dn.net/?f=V%20%3D%20%5Cpi%20r%5E2h%3D%5Cfrac%7B%5Cpi%20d%5E2h%7D%7B4%7D%20%20%5C%5Cwhere%3B%5C%5Cr%20%3D%20radius%20%5C%5Ch%20%3D%20height%20%5C%5Cd%20%3D%20diameter)
the change in height when the volume changes can be derived by differentiating the equation.
![dV =\frac{\pi d^2}{4} dh\\dh = dV\frac{4}{\pi d^2}](https://tex.z-dn.net/?f=dV%20%3D%5Cfrac%7B%5Cpi%20d%5E2%7D%7B4%7D%20dh%5C%5Cdh%20%3D%20dV%5Cfrac%7B4%7D%7B%5Cpi%20d%5E2%7D)
substituting the given values;
![\left \{ {{dV=5 litres= 5000cm^3} \atop {d=56 cm}} \right.](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7BdV%3D5%20litres%3D%205000cm%5E3%7D%20%5Catop%20%7Bd%3D56%20cm%7D%7D%20%5Cright.)
![dh = 5000\frac{4}{\pi * 56^2}\\dh = 2.03cm](https://tex.z-dn.net/?f=dh%20%3D%205000%5Cfrac%7B4%7D%7B%5Cpi%20%2A%2056%5E2%7D%5C%5Cdh%20%3D%202.03cm)
the drop in the level of water in the container is 2.03 cm