Answer:

Step-by-step explanation:
Given the expressions: 
We add:

Volume of the cone = (1/3) pi r^2 h
h = 2r so substituting for h:-
V = (1/3) pi r^2 * 2r
V = (2/3) pi r^3
Answer:
option C: 5x+1
Explaination:
take 5x common and simplify
Answer:
domain: (–∞,∞) or all real numbers
range: (–∞,∞) or all real numbers
Step-by-step explanation:
domain is left to right (x-axis). looking at the graph, as you go from left to right, the x-values are infinitely getting more negative and positive.
range is bottom to top (y-axis). as you go from bottom to top, the y-values are infinitely getting more negative and positive.
X = 7 / sin(45)
x = 7 / sqrt(2)/2
x = 7 sqrt(2)