1.

\eqalign{ & {\text{The sum of}} \cr & \sqrt {0.01} + \sqrt {0.81} + \sqrt {1.21} + \sqrt {0.0009} = ? \cr} $$

A. 2.1
B. 2.13
C. 2.03
D. 2.11
Answer» C. 2.03


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