Question

What's a rational and irrational number between 7.7 and 7.9

Answer 1

\[7\frac{ 8 }{ 10 }\] or 7.8

Answer 2

Yea

Answer 3

7.797979797979 is irrational.

Answer 4

Yup

Answer 5

It can't be expressed as a fraction because it has repeating decimals. It would actually be 7.79 with a line on top of 79.

Answer 6

no ,you are wrong.
let x=7.797979....
100 x=779.7979....
subtract
100 x- 1x=772
99 x=772
x=772/99 which is rational.

Answer 7

oki doke

Answer 8

\[(7.7)^2=59.29\]
\[(7.9)^2=62.41\]
\[\sqrt{60},\sqrt{61}\]
actually there are infinite irrational numbers between 7.7 and 7.9