Solve the inequality.(b + 7)(b + 5)(b + 4) < 0
A. (-?, -5)
B. (-?, -7) or (-5, -4)
C. (-4, ?)
D. (-7, -5) or (-4, ?)
Answer: B
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Solve the problem.The floor plan of a building is shown in the figure below. Is it possible to start in one of the rooms of the building, walk through each door exactly once, and end up in a different room from the one you started in? (Consider the outside a "room".) Justify your answer.
What will be an ideal response?
Determine whether the function is odd, even, or neither.f(x) = 3x - 5
A. Odd B. Even C. Neither
Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable.2x - 2y + 3z = -7x + 2y - z = 102y + z = 1
A. ? B. {(3, 11, -11)} C. {(-3, 2, 9)} D. {(3, 2, -3)}