Question

Between which pair of rational numbers on a number line does 38−−√
lie?(1 point)
Responses

Between 6.3 and 6.5
Between 6.3 and 6.5

Between 19 and 19.2
Between 19 and 19.2

Between 18.9 and 19.1
Between 18.9 and 19.1

Between 6.1 and 6.2

1 answer

To find where \( \sqrt{38} \) lies on a number line, we can first approximate \( \sqrt{38} \).

The perfect squares close to 38 are:

  • \( 6^2 = 36 \)
  • \( 7^2 = 49 \)

So, \( 6 < \sqrt{38} < 7 \).

Next, we can calculate \( \sqrt{38} \) more precisely:

Using a calculator or estimation, we find: \[ \sqrt{38} \approx 6.1644 \]

Now, let's determine between which pairs of rational numbers \( 6.1644 \) lies:

  • Between 6.3 and 6.5: No, \( 6.1644 \) is less than 6.3.

  • Between 19 and 19.2: No, \( 6.1644 \) is much less than 19.

  • Between 18.9 and 19.1: No, \( 6.1644 \) is also less than this range.

  • Between 6.1 and 6.2: Yes, \( 6.1644 \) is between 6.1 and 6.2.

The correct response is: Between 6.1 and 6.2.