Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the exact value of the real number y.y = arccos 
A. 
B. 
C. 
D. - 
Mathematics
For the following question(s), refer to the digraph below.
Vertex D is
A. incident from vertex E only. B. incident from vertices C and E. C. incident from vertex A, B, C, and E. D. incident from vertex C only. E. none of these
Mathematics
Write a positive or negative fraction to describe the situation.Jonathan was short 
cup of milk for the cake recipe.
A. 
B. - 
C. 
D. - 7
Mathematics
Decide whether the pair of lines is parallel, perpendicular, or neither.3x - 2y = 12x + 3y = 20
A. parallel B. perpendicular C. neither
Mathematics