Using a number line, what is the approximate number value of 103−−−√

? Provide your answer in decimal form, rounded to the nearest tenth.(1 point)
103−−−√
is approximately

1 answer

To find the square root of 103 (written as \( \sqrt{103} \)), we can start by determining its approximate value. We know that:

  • \( \sqrt{100} = 10 \)
  • \( \sqrt{121} = 11 \)

Since 103 is between 100 and 121, we know that:

\[ 10 < \sqrt{103} < 11 \]

Now, let's find a better approximation by performing some calculations:

  1. Estimate closer to 10:
    • \( 10.1^2 = 102.01 \)
    • \( 10.2^2 = 104.04 \)

This indicates that \( \sqrt{103} \) is between 10.1 and 10.2.

  1. Further refine:
    • Check \( 10.15^2 = 103.0225 \)
    • Check \( 10.14^2 = 102.6596 \)

Now, we see that \( 10.14^2 < 103 < 10.15^2 \), suggesting a more precise approximation.

So, \( \sqrt{103} \approx 10.14 \).

Finally, rounding 10.14 to the nearest tenth gives us:

\[ \sqrt{103} \approx 10.1 \]

Thus, \( \sqrt{103} \) is approximately 10.1 when rounded to the nearest tenth.