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Choose the answer.
A spherical water tank has a diameter of 14.5 feet.
How much water can the tank hold?
Use 3.14 for л.

Sagot :

Certainly! Let's walk through the solution step by step:

1. Identify the given information:
- The diameter of the spherical water tank is 14.5 feet.
- We are using π (pi) = 3.14.

2. Calculate the radius of the sphere:
- The radius (r) is half of the diameter.
- Therefore, the radius [tex]\( r \)[/tex] is [tex]\( 14.5 \, \text{feet} / 2 \)[/tex].
- That gives us [tex]\( r = 7.25 \)[/tex] feet.

3. Use the formula for the volume of a sphere:
- The formula for the volume [tex]\( V \)[/tex] of a sphere is [tex]\( V = \frac{4}{3} \pi r^3 \)[/tex].

4. Substitute the values into the formula:
- Substitute [tex]\( \pi = 3.14 \)[/tex] and [tex]\( r = 7.25 \)[/tex]:
[tex]\[ V = \frac{4}{3} \times 3.14 \times (7.25)^3 \][/tex]

5. Calculate the volume:
- First, compute the cube of the radius:
[tex]\[ (7.25)^3 = 7.25 \times 7.25 \times 7.25 \][/tex]
- Then, multiply by π and [tex]\( \frac{4}{3} \)[/tex]:
[tex]\[ V = \frac{4}{3} \times 3.14 \times 381.078125 \][/tex]
- Simplify the multiplication:
[tex]\[ V = \frac{4}{3} \times 1196.58625 \][/tex]
- Multiply by [tex]\( \frac{4}{3} \)[/tex]:
[tex]\[ V = 1595.4470833333332 \, \text{cubic feet} \][/tex]

Therefore, the spherical water tank can hold approximately 1595.447 cubic feet of water.
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