I think its the second one
Answer:
284/3 πx³
Step-by-step explanation:
Volume of a cylinder is expressed as shown:
V = πr²h
r is the radius of the cylinder
r = diameter/2
r = 8x/2
r = 4x
Height of the cylinder = 6x
Volume of the roll with out the hole
V = π(4x)²(6x)
V = 16x²π(6x)
V = 96πx³
The hole in the middle will be a solid sphere with diameter 2x (radius will be x)
Volume of the hole = 4/3πr³
Volume if the hole = 4/3πx³
Volume of the toilet paper roll = volume of the roll without a hole - volume of the hole
= 96πx³ - 4/3πx³
= (96-4/3)πx³
= 284/3 πx³
He has to add half of a foot to get 2 and a half feet for the banner
X = 5
You first have to use Pythagorean Theorem to find the side lengths of the triangle with the hypotenuse of 10. The side lengths are 5sqrt2.
Now do Pythagorean theorem again to find the side length is 5
Answer:
6x+18y
Step-by-step explanation:
