Jake runs 76–√ miles on Monday and 56–√ miles on Tuesday. What is the difference in miles run each day?(1 point)

Responses

26–√
2 start root 6 end root

212−−√
2 start root 12 end root

46–√
4 start root 6 end root

412−−√

1 answer

To find the difference in miles run by Jake on Monday and Tuesday, we need to calculate:

\[ \sqrt{76} - \sqrt{56} \]

First, let's approximate the square roots:

  1. For \(\sqrt{76}\):

    • \( \sqrt{76} = \sqrt{4 \cdot 19} = 2\sqrt{19} \)
  2. For \(\sqrt{56}\):

    • \( \sqrt{56} = \sqrt{4 \cdot 14} = 2\sqrt{14} \)

Now we can express the difference:

\[ \sqrt{76} - \sqrt{56} = 2\sqrt{19} - 2\sqrt{14} = 2(\sqrt{19} - \sqrt{14}) \]

We can evaluate the approximate values of \(\sqrt{19}\) and \(\sqrt{14}\):

  • \(\sqrt{19} \approx 4.36\)
  • \(\sqrt{14} \approx 3.74\)

Thus,

\[ \sqrt{19} - \sqrt{14} \approx 4.36 - 3.74 = 0.62 \]

Now multiplying by 2 gives:

\[ 2(0.62) = 1.24 \]

This does not directly match any of the options listed, indicating we need to look for a more simplified term.

However, if we take it step by step without approximating:

The difference in a squared form can also be solved by rationalizing and simplifying:

Returning to \( \sqrt{76} - \sqrt{56} \):

  1. Square both results to find if any manipulations yield the responses given
  2. So \(76 - 56 = 20\), where some manipulation gives \(\sqrt{20} = 2\sqrt{5}\), indicative of 4 options we do see.

The closest matching answer among your selections to \( \sqrt{76} - \sqrt{56} \) will be computed or double-checked being:

Taking a guess from approximations will help lead us to Option:

\[ 2\sqrt{12} \]

This requires direct coefficient simplification since squared results lead to further simplifications to help isolate the values straightforward. Backtrack to articulate answer:

Thus the output difference is likely expressed in option providing:

Conclusion: Answering choice is \(2\sqrt{12}\).