Between which two integers does each irrational number lie? A)√6

Question

B)√28
C)√12
D)3√18
E)4√58
F)-3√40

Answer 1

Hey, try

I will do D

3 sqrt 18

= 3 sqrt (9*2)

= 3 sqrt (3*3*2)

= 3*3 sqrt 2

= 9 sqrt 2

= 9 (1.414) around 12.5 or so
which is between 12 and 13

NOW
check that with your calculator (Google calculator if you do not have one on your desk)
3 sqrt(18) = 12.728