Find the product.(x + 3)(9x2 + 5x + 4)
A. 135x4 + 9x3 + 60x2 + 12
B. 9x3 + 27x2 + 15x + 12
C. 36x3 + 20x2 + 16x
D. 9x3 + 32x2 + 19x + 12
Answer: D
Mathematics
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A. Ellipsoids B. Hyperboloids of two sheets C. Hyperboloids of one sheet D. Paraboloids
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=
and the planes
and
(The area of an ellipse with semiaxes a and b is ?ab.)
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Evaluate the absolute value.|-18|
A. 36 B. 18 C. 0 D. -18
Mathematics