Given:
The radius, r=4x
The height,

To find the volume of the cone:
The volume of the cone formula is,

Substitute the values of r and h in the above formula we get,

Hence, the volume of the cone is

Thus, the correct option is option D.
Answer: 10√3 / 3
Step-by-step explanation:
cos 30 = 5 / x
x = 5 / cos 30
= 5 / √3 / 2
= 10 √3
= 10√3 / 3
Answer:
21 is 35% of 60
Step-by-step explanation:
35% can be written as 0.35
0.35x = 21 ----- 0.35 times a number is 21
divide both sides by 0.35:
x = 60
<span> G(f(x)) = 2(x^2 -1) + 3
= 2x^2 + 1
subsitute 2
= 9
Hence, the answer is 9</span>
Answer: the answer is c
Step-by-step explanation: 7x=18+3
7x=21
x/7=21/7
x=3