Question

Please answer this question for 25 points !! :D

Answer 1

`We\ know:\ √(a)=b\iff b^2=a\\\\√(0.25)=\sqrt{(25)/(100)}\qquad\text{use}\ \sqrt{(a)/(b)}=(√(a))/(√(b))\\\\=(√(25))/(√(100))=(5)/(10)=0.5\\\\√(25)=5\ \ because\ 5^2=25\\\\√(100)=10\ \ because\ 10^2=100\\\\√(0.25)=0.5\ because\ 0.5^2=0.25\\`

Answer 2

We know that 5 x 5 = 25, so the only answer choice with a 5 in it is 0.5

0.5 x 0.5 = 0.25, and the square root of that just equals 0.5.

Answer: C. 0.5