Answer:
-- Proved

Step-by-step explanation:
Given


Required
Show that 
The volume is calculated as:

Open the brackets



Collect Like Terms


Divide through by 4


Solving further:
Expand the expression

Factorize:


Split:


Explanation:
The expression f(0) represents the value of the function at x=0 which means the y-intercept of the function.
the y-intercept of the graph is the point that crosses the y-axis.
From the given graph,
The y-intercept of the graph does not define.
Answer: f(0) = not defined
6 - 2 2/7 =
6 - 16/7 =
42/7 - 16/7 =
26/7 or 3 5/7
The answer is A i’m pretty sure
Add 7 and 2 you will get 9, therefore the length of the post is 9.