Respuesta :
Answer:
13.41
Step-by-step explanation:
Hope it helps!
Answer:
6[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]
Simplifying the radicals
[tex]\sqrt{20}[/tex]
= [tex]\sqrt{4(5)}[/tex]
= [tex]\sqrt{4}[/tex] × [tex]\sqrt{5}[/tex] = 2[tex]\sqrt{5}[/tex]
[tex]\sqrt{80}[/tex]
= [tex]\sqrt{16(5)}[/tex]
= [tex]\sqrt{16}[/tex] × [tex]\sqrt{5}[/tex] = 4[tex]\sqrt{5}[/tex]
Then
[tex]\sqrt{20}[/tex] + [tex]\sqrt{80}[/tex]
= 2[tex]\sqrt{5}[/tex] + 4[tex]\sqrt{5}[/tex]
= 6[tex]\sqrt{5}[/tex]
