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MakcuM [25]
4 years ago
13

a storage chest has lenght of 4.5 feet and a width of 2 feet and a height of 2 feet, what are the volume and the surface area of

this storage chest?
Mathematics
1 answer:
rosijanka [135]4 years ago
7 0

Answer:

Area = 18 ft³   Surface Area = 44 ft²

Step-by-step explanation:

The formula for the area of a rectangular prism is A=lwh so you just plug in the numbers. For surface area, you have to find the area for each face and add them together.

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3 years ago
A company makes spherical tanks that store chemicals. Their standard model has a diameter of 6 meters, but a customer needs a la
Deffense [45]

Answer:

The approximate diameter of the larger tank is 8.10 meters

Step-by-step explanation:

Here, we want to calculate the diameter of the larger tank

The volume of a sphere

V = 4/3 * π * r^3

Let us calculate the volume of the standard model

That will be;

Since diameter is 6 and r = d/2

r = 6/2 = 3 meters

V = 4/3 * π * 3^3 = 36 π m^3

Now, the volume of the larger tank is 2.5 times of this;

The volume of the larger tank is 2.5 * 36 π = 90 π m^3

So we can calculate the radius of this before we calculate its diameter

4/3 * π * r^3 = 90 π

4r^3/3 = 90

r^3 = 270/4

r^3 = 67.5

r = 3x√(67.5)

r = 4.07 m

Diameter here is 2 times this

= 4.07 * 2 = 8.14

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3 years ago
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Step-by-step explanation:

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