Evaluate the Radical Expression If It Is a Real Number $\sqrt { - 16 }$

question 33

Multiple Choice

Evaluate the radical expression if it is a real number. Use a calculator to approximate irrational numbers to the nearest
hundredth. If the expression is not a real number, so state.
- $\sqrt { - 16 }$

• A)4
• B)256
• C)-4
• D)not a real number

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