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Simplify the Expression $\sqrt { 9 } - \sqrt { 100 }$

Question 152

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers.
- $\sqrt { 9 } - \sqrt { 100 }$

A) $- \sqrt { 7 }$
B) $- 3.5$
C) $- \sqrt { 91 }$
D) $- 7$

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