QuestionAugust 26, 2025

13. Rosie is comparing sqrt (7) and 3.44444... . She says that sqrt (7)gt 3.44444ldots because sqrt (7)=3.5 a. What is the correct comparison? b. Communitcate and Justify What mistake did Rosie likely make?

13. Rosie is comparing sqrt (7) and 3.44444... . She says that sqrt (7)gt 3.44444ldots because sqrt (7)=3.5 a. What is the correct comparison? b. Communitcate and Justify What mistake did Rosie likely make?
13. Rosie is comparing sqrt (7) and 3.44444... . She says
that sqrt (7)gt 3.44444ldots  because sqrt (7)=3.5
a. What is the correct comparison?
b. Communitcate and Justify What mistake
did Rosie likely make?

Solution
4.1(203 votes)

Answer

a. \sqrt{7} < 3.44444... ### b. Rosie mistakenly calculated \sqrt{7} as 3.5 instead of its correct value, approximately 2.64575. Explanation 1. Calculate \sqrt{7} Use a calculator or approximation method to find \sqrt{7} \approx 2.64575. 2. Compare \sqrt{7} and 3.44444... Since \sqrt{7} \approx 2.64575, it is less than 3.44444... 3. Identify Rosie's mistake Rosie incorrectly assumed \sqrt{7} = 3.5. This is incorrect because \sqrt{7} is approximately 2.64575, not 3.5.

Explanation

1. Calculate $\sqrt{7}$<br /> Use a calculator or approximation method to find $\sqrt{7} \approx 2.64575$.<br /><br />2. Compare $\sqrt{7}$ and 3.44444...<br /> Since $\sqrt{7} \approx 2.64575$, it is less than 3.44444...<br /><br />3. Identify Rosie's mistake<br /> Rosie incorrectly assumed $\sqrt{7} = 3.5$. This is incorrect because $\sqrt{7}$ is approximately 2.64575, not 3.5.
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