College

7:10 PM Wed Apr 24

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The Farmer Supply is building a storage building for fertilizer that has a cylindrical base and a cone-shaped

top. The county law say that the storage building must have a width of 8 feet and a height of 14 feet. Dump

trucks deliver fertilizer in loads that are 4 feet tall, 6 feet wide, and 12 feet long. Farmer Supply wants to be

able to store 2 dump-truck loads of fertilizer.

h2

h

If h1-13 feet, Answer the following:

h2=

amount of Fertilizer that can be held by the building. (Rounded to nearest thousandth)

How much Fertilizer does the Farmer Supple want the building to hold?

Can this building hold that Fertilizer?

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Answer :

The building can indeed hold the desired amount of fertilizer since 2134.695 > 576.

Therefore, the building can hold the required fertilizer amount.

Given:

The base width of the cylindrical part is 8 feet.

The total height of the building is 14 feet.

Each dump truck load is 4 feet tall, 6 feet wide, and 12 feet long.

The cylindrical part of the storage building has a height of h1 and the cone-shaped top has a height of h2, where h1 + h2 = 14 feet.

Calculate the volume of the cylindrical part of the storage building.

Volume of a cylinder = π * r^2 * h

where r is the radius and h is the height.

Since the base width is 8 feet, the radius (r) of the cylindrical part is half of that, so r = 4 feet

For the cylindrical part:

Volume_cylinder = π * (4^2) * h1

Next, let's calculate the volume of the cone-shaped top of the storage building.

Volume of a cone = (1/3) * π * r^2 * h

For the cone:

Volume_cone = (1/3) * π * (4^2) * h2

The total volume of the storage building is the sum of the volumes of the cylindrical part and the cone-shaped top:

Total_volume = Volume_cylinder + Volume_cone

We know that the total volume should be able to hold 2 dump-truck loads of fertilizer.

Each dump truck load has a volume of 4 * 6 * 12 = 288 cubic feet.

The amount of fertilizer that can be held by the building is Total_volume / 288.

If h1 = 13 feet, then h2 = 14 - 13 = 1 foot.

plug in the values and calculate:

Volume_cylinder = π * (4^2) * 13 ≈ 2117.94 cubic feet

Volume_cone = (1/3) * π * (4^2) * 1 ≈ 16.755 cubic feet

Total_volume = 2117.94 + 16.755 ≈ 2134.695 cubic feet

check if this volume can hold 2 dump-truck loads of fertilizer:

Total_fertilizer_volume_needed = 2 * 288 ≈ 576 cubic feet