Respuesta :

Answer:

C. 10

Step-by-step explanation:

[tex]\sqrt{20}\cdot \sqrt{5}= \\\\\sqrt{20\cdot 5}= \\\\\sqrt{100}= \\\\10[/tex]

Hope this helps!

Answer:

2 times root 5

Step-by-step explanation:

root 20= root 4x5

2 times root 5