Using a number line, what is the approximate value of √19 ?

4.5

4.38

4.25

4.13

The approximate value of √19 using a number line is 4.38.

Using a number line, what whole number and rational number to the nearest half is √105 between?

between 10 and 10.5

between 9.5 and 10

between 11 and 11.5

between 10.5 and 11

√105 is between 10 and 10.5 on a number line.

Using rational approximations, what statement is true?

49 < √7

48 > √36

48 < √36

49 < √7

The statement "49 < √7" is true.

Using rational approximations, what statement is true?

√81 > 9

√71 > √61

√71 < √61

√81 < 9

The statement "√81 > 9" is true.