Evaluate the square root without using a calculator. $- \sqrt { 0.16 }$
A) -0.16
B) -0.4
C) 0.4
D) -0.0016
E) 0.16

Name: Evaluate the square root without using a calculator. $- \sqrt { 0.16 }$ A) -0.16 B) -0.4 C) 0.4 D) -0.0016 E) 0.16
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Question

Quizplus · Accepted Answer

To evaluate this square root without a calculator, we can simplify the radicand first.

$-\sqrt{0.16} = -\sqrt{\frac{16}{100}} = -\frac{\sqrt{16}}{\sqrt{100}} = -\frac{4}{10} = \boxed{-0.4}$

Therefore, the best choice is B.

Evaluate the Square Root Without Using a Calculator −0.16- \sqrt { 0.16 }−0.16​

Evaluate the Square Root Without Using a Calculator $- \sqrt { 0.16 }$