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OpenStudy (anonymous):
A sphere has a radius of 4x + 4. Which polynomial in standard form best describes the total surface area of the sphere? Use the formula S = 4r² for the surface area of a sphere. 64x² + 128x + 64 64x² – 128x + 64 64x² + 128x – 64 64x² – 128x – 64
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OpenStudy (anonymous):
both 64's and 128 have pi signs behind them
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