4
sqrt(20)/sqrt(5) = sqrt(20/5) = sqrt(4) = 2
20/√5 = 20√5/(√5√5) = 20√5/5 = 4√5
0.5
5
2
2 square root of 5
0.4
0.5
5
2
There is no square root of -75. If it's 75, that is 5 square root 3.
2 square root of 5
0.4
0.625
25
square root of 20 = square root of 4 * square root of 5. square root of 4 = 2, so your answer is 2 square root of 5.
12
20 is 5x4 so we can simplify it like this: ____ ______ / = / \/ 20 \/ 5 x 4 Also note that: ____ / = 2 \/ 4 So... ____ ____ / = / \/ 20 2 \/ 5
0.25