Factor out the greatest common factor.3x2 - 12x
A. 12x(x - 4)
B. 3x(x + 4)
C. 3x(x - 4)
D. 3(x2 - 4x)
Answer: C
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Simplify completely.
A. 
B. - 
C. 
D. - 
Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex cube roots of -8i
A. 2(cos 180° + i sin 180°), 2(cos 300° + i sin 300°), 2(cos 60° + i sin 60°) B. 8(cos 90° + i sin 90°), 8(cos 210° + i sin 210°), 8(cos 330° + i sin 330°) C. 512(cos 90° + i sin 90°), 512(cos 210° + i sin 210°), 512(cos 330° + i sin 330°) D. 2(cos 90° + i sin 90°), 2(cos 210° + i sin 210°), 2(cos 330° + i sin 330°)
Solve.There are 97 puppies in a room, with an assortment of black and white ears and paws. 21 have totally black ears and 3 white paws, 27 puppies have 1 black ear and 2 white paws, and 49 have no black ears and 1 white paw. How many black paws are in the room?
A. 222 B. 221 C. 169 D. 166
Write as a percent.0.2
A. 0.02% B. 200% C. 0.2% D. 20%