Answer:
try the 3rd one
Step-by-step explanation:
if it's not right then i'm sorry
Answer:
The right answer is:
the addition property of equality and then the division property of equality
Step-by-step explanation:
Given equation and steps to solve it are:
Step 1: –3x – 5 = 13
Step 2: –3x = 18
Step 3: x = –6
In step two, -5 has to be removed from left hand side of the equation so additional property of equality will be used i.e. adding 5 on both sides
Similarly in the third step, to remove -3 with x , division property of equality will be used i.e. dividing both sides by -3
Hence,
The right answer is:
the addition property of equality and then the division property of equality
A = 1/2 bh
A = 1/2 (21)(8)
A = 1/2 (168)
A = 84
Answer:
![V= 4\pi (9h^2 -12h + 4)](https://tex.z-dn.net/?f=V%3D%204%5Cpi%20%289h%5E2%20-12h%20%2B%204%29)
Step-by-step explanation:
Given
Shape: Cylinder
![Radius = 3h - 2](https://tex.z-dn.net/?f=Radius%20%3D%203h%20-%202)
![Height = h](https://tex.z-dn.net/?f=Height%20%3D%20h)
![Base\ Area = \pi (3h - 2)^2](https://tex.z-dn.net/?f=Base%5C%20Area%20%3D%20%5Cpi%20%283h%20-%202%29%5E2)
Required
Simplify the volume
The volume is calculated as:
![Volume = Base\ Area * Height](https://tex.z-dn.net/?f=Volume%20%3D%20Base%5C%20Area%20%2A%20Height)
Substitute values for Base Area and Height
![V= \pi(3h-2)^2*h](https://tex.z-dn.net/?f=V%3D%20%5Cpi%283h-2%29%5E2%2Ah)
Expand the bracket
![V= \pi(3h-2)(3h-2)*h](https://tex.z-dn.net/?f=V%3D%20%5Cpi%283h-2%29%283h-2%29%2Ah)
Open brackets
![V= \pi (9h^2 -6h - 6h + 4) *h](https://tex.z-dn.net/?f=V%3D%20%5Cpi%20%289h%5E2%20-6h%20-%206h%20%2B%204%29%20%2Ah)
![V= \pi (9h^2 -12h + 4) *h](https://tex.z-dn.net/?f=V%3D%20%5Cpi%20%289h%5E2%20-12h%20%2B%204%29%20%2Ah)
![V= 4\pi (9h^2 -12h + 4)](https://tex.z-dn.net/?f=V%3D%204%5Cpi%20%289h%5E2%20-12h%20%2B%204%29)
Answer:
B
Step-by-step explanation: