Simplify the expression by rationalizing the denominator.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Integrate the function.
dy
A. 
+ C
B. 
- sin-1
+ C
C. 
- sin-1
+ C
D. 
- sin-1y + C
Mathematics
Solve the problem.If an object has a 120° clockwise rotation as one of its symmetries, then it must also have as a symmetry
A. a 60° clockwise rotation. B. a 120° counterclockwise rotation. C. a 60° counterclockwise rotation. D. a 180° rotation. E. none of these
Mathematics
Provide an appropriate response.A triangle has a base of 
and a height of 
. What is the best estimate for its area?
A. 3078 B. 153 C. 161.5 D. 171
Mathematics
Solve the system of equations by the substitution method.
A. (2, -4) B. (-2, -5) C. (-3, -4) D. no solution
Mathematics