Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 4  + 2xy 

A. 10x2y4
B. 10 xy4
C. 6xy5
D. 6x2y5

Answer: B

Mathematics

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Arrange the group of numbers in order, from least to greatest.0.09, 0.01, 0.019, 0.091

A. 0.019, 0.091, 0.01, 0.09   B. 0.01, 0.019, 0.09, 0.091   C. 0.01, 0.09, 0.019, 0.091   D. 0.091, 0.019, 0.09, 0.01

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Find the exact trigonometric function value.sec 1215°

A.
B.  
C. 2
D. - 

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