Question

determine o valor inteiro mais próximo de:

A)√5=

B√7=

C)√10=

D)√20=

E)√30=

Answer 1

$a)\;\sqrt{5}=2,2360...\Longrightarrow \sqrt{5}\approx2\\\\ b)\;\sqrt{7}=2,6457...\Longrightarrow\sqrt{7}\approx3\\\\ c)\;\sqrt{10}=3,1622...\Longrightarrow\sqrt{10}\approx3\\\\ d)\;\sqrt{20}=4,4721...\Longrightarrow\sqrt{20}\approx4\\\\ e)\;\sqrt{30}=5,4772...\Longrightarrow\sqrt{30}\approx5$