Math Problem Statement
The volume of a spherical tank is given by \( V = \frac{4}{3} \pi r^3 \). If the volume of the tank is known, which expression can be used to find its radius?
Solution
The formula for the volume of a sphere is given by:
To solve for the radius in terms of the volume , we can rearrange this formula as follows:
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Multiply both sides by to isolate :
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Now, take the cube root of both sides to solve for :
Now, we can compare this result to the answer choices:
- Option B matches , which is the correct form.
Thus, the answer is:
B.
Would you like further details on this solution, or do you have any other questions?
Additional Questions for Deeper Understanding:
- How would the formula change if we were dealing with the surface area of a sphere instead of volume?
- Can you derive the formula for the surface area of a sphere using the radius found here?
- What if the problem gave the diameter instead of the radius — how would that affect the volume formula?
- How can this concept be applied in real-world scenarios involving spheres, like in calculating fuel tank volumes?
- What happens to the volume of the sphere if the radius is doubled?
Tip:
When solving for one variable in terms of others, always isolate the desired variable first before applying inverse operations (like taking roots or logarithms) to simplify the expression effectively.
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Math Problem Analysis
Mathematical Concepts
Geometry
Algebra
Volume of a Sphere
Solving for Radius
Formulas
V = \frac{4}{3} \pi r^3
Theorems
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Suitable Grade Level
Grades 9-10