Simplify.

A. - 
B.
C. -12
D.


Answer: A

Mathematics

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Solve the problem.Find the center of mass of the thin semicircular region of constant density  bounded by the  and the curve  .

A.  = 0,  = 
B.  = 0,  = 
C.  = 0,  = 
D.  = 0,  = 

Mathematics

Express the number in scientific notation.0.000462

A. 4.62 x 10-4 B. 4.62 x 10-3 C. 4.62 x 10-5 D. 4.62 x 104

Mathematics

Find x: e-ú8x = 115

a. -5.931 b. -4.475 c. -2.661 d. -1.483 e. -0.714

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Find ? to the nearest tenth of a degree if cos?= -0.5616 and sin?<0.

What will be an ideal response?

Mathematics