Use the graph to find the intervals on which it is increasing, decreasing, or constant.
A. Decreasing on (-?, 0); increasing on (0, ?)
B. Increasing on (-?, 0); decreasing on (0, ?)
C. Decreasing on (-?, ?)
D. Increasing on (-?, ?)
Answer: B
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 0) for cos xy + yex = 0.
A. e
B. 1
C. 
D. 0
Find the area enclosed by the given curves.y = sin x, y = csc 2 x, 
? x ? 
A. 1 - 
B. 
- 
C. 
+ 
D. 
- 
Solve the problem.A motorcycle daredevil is planning a stunt to perform at a county fair. A ramp must be built to give him a 20% grade, or slope. If the vertical height at the end of the ramp must be 20 ft to assure that the stunt is a success, what must be the length of the horizontal run?
A. 20 ft B. 100 ft C. 360 ft D. 3.6 ft
Provide an appropriate response. To add two integers with unlike signs:
A. add and keep the sign of the smaller value B. subtract and use the sign of the larger value C. subtract and the answer is positive D. add and use the sign of the larger value