Question

Between which pair of rational numbers on a number line does 18−−√
lie?
A. Between 8.9 and 9.1
B. Between 4.2 and 4.3
C. Between 4.3 and 4.5
D. Between 9 and 9.2

Answer 1

To determine the approximate value of √18, we can use the fact that √16 = 4 and √25 = 5. Since 16 is smaller than 18 and 25 is larger than 18, we know that √18 is greater than 4 and less than 5.

So, √18 lies between the rational numbers 4 and 5.

Therefore, the answer is not listed among the options.