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-1+ 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