Which irrational number is between 14−−√

and 18−−√
?(1 point)
Responses

10−−√
start root 10 end root

15−−√
start root 15 end root

13−−√
start root 13 end root

19−−√

1 answer

To find which irrational number lies between \(\sqrt{14}\) and \(\sqrt{18}\), we first need to approximate the values of these square roots.

  • \(\sqrt{14} \approx 3.74\)
  • \(\sqrt{18} \approx 4.24\)

Now let's approximate the square roots of the response options:

  • \(\sqrt{10} \approx 3.16\)
  • \(\sqrt{15} \approx 3.87\)
  • \(\sqrt{13} \approx 3.61\)
  • \(\sqrt{19} \approx 4.36\)

Now we can determine which of these values is between \(\sqrt{14} \approx 3.74\) and \(\sqrt{18} \approx 4.24\):

  • \(\sqrt{10} \approx 3.16\) (not between)
  • \(\sqrt{15} \approx 3.87\) (between)
  • \(\sqrt{13} \approx 3.61\) (not between)
  • \(\sqrt{19} \approx 4.36\) (not between)

Thus, the irrational number that is between \(\sqrt{14}\) and \(\sqrt{18}\) is \(\sqrt{15}\).