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Evaluate the Root Without Using a Calculator or Note That $- \sqrt { 0.49 }$

Question 118

Multiple Choice

Evaluate the root without using a calculator or note that root is not a real number.
$- \sqrt { 0.49 }$

A) $0.7$
B) $0.2401$
C) $- 0.7$
D) Not a real number

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