SOLUTION: A bar of gold has a base area that can be expressed as 3x^2+8x+5 cm^2. The height of the gold bar can be expressed as x+5cm. Find the expression representing the volume of the gold
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Question 1053768: A bar of gold has a base area that can be expressed as 3x^2+8x+5 cm^2. The height of the gold bar can be expressed as x+5cm. Find the expression representing the volume of the gold bar.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A bar of gold has a base area that can be expressed as 3x^2+8x+5 cm^2. The height of the gold bar can be expressed as x+5cm. Find the expression representing the volume of the gold bar.
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Volume = (area of base)(height)
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V = (3x^2+8x+5)(x+5) cm^3
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V = 3x^3 + 15x^2 + 8x^2 + 40x + 5x + 25
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V = 3x^3 + 23x^2 + 45x + 25 cm^3
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Cheers,
Stan H.
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