Answer:
7.57 cm
Step-by-step explanation:
Volume of a cylinder = πr²h
π = 3.14
r= radius
h = height
1,800 = 3.14 x r² x 40
r² = 1800 /(3.14 x 40)
r² = 14.33121
√14.33121 = r
r = 3.785658 cm
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
A radius is half of the diameter
Diameter = 2 x 3.785658 cm = 7.57cm
Answer:
did u ever get the answer i need helpppp
Step-by-step explanation:
Answer:
Option B
Step-by-step explanation:
Numerator:

![=\dfrac{3- 4x -4*(-1)}{x-1}=\dfrac{3-4x+4}{x-1}\\\\\\=\dfrac{-4x+7}{x-1} \: \textbf{ [Combine like terms]}](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B3-%204x%20-4%2A%28-1%29%7D%7Bx-1%7D%3D%5Cdfrac%7B3-4x%2B4%7D%7Bx-1%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B-4x%2B7%7D%7Bx-1%7D%20%5C%3A%20%20%5Ctextbf%7B%20%5BCombine%20like%20terms%5D%7D)
Denominator:



![\bf = \dfrac{-4x+7}{x-1}*\dfrac{x-1}{2(x-2)} \ \ \ \textbf{ [(x-1) in the numerator and denominator will be cancelled]}\\\\\\=\dfrac{-4x+7}{2(x-2)}](https://tex.z-dn.net/?f=%5Cbf%20%3D%20%5Cdfrac%7B-4x%2B7%7D%7Bx-1%7D%2A%5Cdfrac%7Bx-1%7D%7B2%28x-2%29%7D%20%5C%20%5C%20%5C%20%20%5Ctextbf%7B%20%5B%28x-1%29%20in%20the%20numerator%20and%20denominator%20will%20be%20cancelled%5D%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B-4x%2B7%7D%7B2%28x-2%29%7D)
H= 3 V/ Ab =3 x 168/36 = 14 cm
Yes because it is a linear equation