Solve the inequality.x2 - 7x ? 0
A. (-?, -7] or [0, ?)
B. [0, 7]
C. [-7, 0]
D. (-?, 0] or [7, ?)
Answer: D
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Provide an appropriate response. Perform the multiplication: x2(x2 + 3x - 4)
A. x4 + 3x3 - 4x2 B. x4 + 3x2 - 4 C. x4 + 3x3 - 4 D. x4 + 3x - 4x2
Match the function with its graph.1) y = - tan 
2) y = tan 
3) y = - cot 
4) y = cot 
A) B)
height="200" width="200" />C) D)
A. 1A, 2D, 3B, 4C
B. 1D, 2A, 3C, 4B
C. 1A, 2B, 3C, 4D
D. 1C, 2B, 3D, 4A
Solve the problem.A window washer accidentally drops a bucket from the top of a 256-foot building. The height h of the bucket after t seconds is given by 
When will the bucket hit the ground?
A. -4 sec B. 64 sec C. 16 sec D. 4 sec
Find the exact solutions to the quadratic equation, using a method of your choice.x2 + x + 6 = 0
A. 
± 
B. 
± i
C. - 
± i
D. - 
± 