Question

Using a number line, what is the approximate value of 19−−√
19
?(1 point)
Responses

4.3
4.3

4.5
4.5

4.7
4.7

4.1

Answer 1

√19 is between √16 = 4 and √25 = 5. Since 4.3^2 = 18.49 and 4.4^2 = 19.36, √19 ≈ 4.36, so the closest choice is 4.3.