Evaluate the square root, if possible, without using a calculator. $\sqrt { - 9 }$
A) 2
B) 3
C) -5
D) $5 x - 4$
E) not real

Name: Evaluate the square root, if possible, without using a calculator. $\sqrt { - 9 }$ A) 2 B) 3 C) -5 D) $5 x - 4$ E) not real
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Question

Quizplus · Accepted Answer

The square root of a negative number is not a real number; it involves imaginary numbers. Therefore, $\sqrt{-9}$ is not real in the context of real numbers.

Evaluate the Square Root, If Possible, Without Using a Calculator −9\sqrt { - 9 }−9​

Evaluate the Square Root, If Possible, Without Using a Calculator $\sqrt { - 9 }$