A grain silo is composed of a cylinder and a hemisphere. The diameter is 4.4 meters. The height of its cylindrical portion is 6.2 meters. A half-sphere is stacked on top of a cylinder. They both share a circular base. The cylinder has a height of 6.2 meters and the sphere has a diameter of 4.4 meters. What is the approximate total volume of the silo? Use 3.14 for π and round the answer to the nearest tenth of a cubic meter. 37.1 m3 71.9 m3 116.5 m3 130.8 m3

Option B is correct.

Step-by-step explanation:

Diagram of given scenario shown below.

Given that,

Diameter of cylinder is .

Height of cylinder is .

So, Radius of cylinder is

Volume of cylinder =                    {where, , is the radius                                                  

                                                               of cylinder and is height of cylinder}

Substituting the values we get,

Volume of cylinder

                               

Therefore, Required volume of Cylinder rounding it to the nearest tenth ≈ .

Hence, option B is correct.

8%

Step-by-step explanation:
The amount repaid is ...
A = P(1 +rt)
Filling in the given values, we can find r.
(18·28) = 450(1 +r(18/12)) . . . . . t is in years
504 = 450 + 675t

54/675 = 0.08 = 8%

The simple interest rate on the loan is 8%.