Question

What is the square root of 0.16?

Answer 1

`+-0.4`

Explanation:

`"note that "0.16=16/100`

`rArrsqrt(0.16)=sqrt(16/100)`

`rArrsqrt(16/100)=+-4/10=+-2/5larrcolor(blue)"note plus or minus"`

`rArrsqrt(0.16)=+-2/5=+-0.4`