Solve the problem.A window washer accidentally drops a bucket from the top of a 64-foot building. The height h of the bucket after t seconds is given by 
When will the bucket hit the ground?
A. -2 sec
B. 2 sec
C. 32 sec
D. 4 sec
Answer: B
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Find the natural domain of the function.f(x, y) = 
A. All points in the x-y plane B. All points in the x-y plane except x = 0 C. All points in the x-y plane except (0, 0) D. All points in the x-y plane except y = 0
Graph the numbers on the real number line.x < -6
A. 
B. 
C. 
D. 
Solve the problem.The graphs below show the first and second derivatives of a function y = f(x). Select a possible graph of f that passes through the point P.f'?f"
?
A. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
B. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
C. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
D. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
Solve the problem.Find the mass of a thin triangular plate bounded by the coordinate axes and the line 
if 
.
A. 
B. 
C. 
D. 