Simplify.
? 
A. 
B. 7
C. 7
D. 18
Answer: C
Mathematics
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Perform the indicated operation. Assume that all variables are nonnegative.10
- 10
A. 10
B. 1
C. 0
D. 
Mathematics
Integrate the function.
A. 
+ C
B. ln 
+ C
C. tan-1 5x - 
+ C
D. 
tan-1 5x + 
+ C
Mathematics
Solve the problem.
A tunnel is in the shape of a parabola. The maximum height is 19 m and it is 13 m wide at the base. What is the vertical clearance 6 m from the edge of the tunnel?
A. 18.9 m B. 18.2 m C. 0.8 m D. 0.1 m
Mathematics
Use a reference angle to find the value. sin (-120°)
A. 
B. 
C. - 
D. 
Mathematics