Solve the polynomial inequality.(x + 4)(x + 3)(x - 4) > 0
A. (4, ?)
B. (-?, -3)
C. (-?, -4) ? (-3, 4)
D. (-4, -3) ? (4, ?)
Answer: D
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Evaluate.
A. 20 B. 22 C. 19 D. 21
Solve the problem.Suppose the following matrix represents the input-output matrix, T, of a simplified economy. Manufacturing Agriculture Transportation 
The demand matrix is D = 
Find the amount of each commodity that should be produced.
A. 3263 units of manufacturing, 3640 units of agriculture, and 3023.8 units of transportation. B. 3640 units of manufacturing, 3029 units of agriculture, and 3263 units of transportation. C. 3263 units of manufacturing, 3029 units of agriculture, and 3224 units of transportation. D. 3224 units of manufacturing, 3668.6 units of agriculture, and 3023.8 units of transportation.
Solve.Aiden's math instructor gives quizzes worth 15 points each. Aiden has the following quiz scores: 4, 4, 9, 6, 13, 7, 1. If his instructor drops the lowest quiz score, what is Aiden's quiz average?
A. 6 B. 1 C. 9 D. 7
Use the Quadratic Formula to solve the equation.
?
?
A. 
B. 
C. 
D. 
E. 