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rtraylor3

  • 3 years ago

If the amount of air in a spherical balloon is 288 pi cu. in., what is the radius if half the air is let out? The answer must be in cube root form.

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  1. BTaylor
    • 3 years ago
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    \[V = \frac{4}{3}\pi r^{3}\] so solve for r if V=288pi/2=144pi \[144 \pi = \frac{4}{3} \pi r^3\]\[144 = \frac{4}{3}r^{3}\]\[108=r^{3}\]\[r=\sqrt[3]{108}\]

  2. rtraylor3
    • 3 years ago
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    You just saved me!! I would give you 50 medals if I could! Thanks <3

  3. BTaylor
    • 3 years ago
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    no problem.

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