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rebas house is due west of oakdale and due south of richmond. oakdale i…

Question

rebas house is due west of oakdale and due south of richmond. oakdale is 6.9 miles from rebas house and 9 miles from richmond. how far is richmond from rebas house, measured in a straight line? if necessary, round to the nearest tenth. miles

Explanation:

Step1: Identificar el triángulo rectángulo

Los puntos Reba's house (R), Oakdale (O) y Richmond (C) forman un triángulo rectángulo. Donde \(OR = 6.9\) millas (cateto), \(OC=9\) millas (hipotenusa). Buscamos \(RC\) (otro cateto).

Step2: Aplicar el Teorema de Pitágoras

Según el Teorema de Pitágoras \(a^{2}+b^{2}=c^{2}\), donde \(c\) es la hipotenusa y \(a\) y \(b\) son los catetos. Aquí \(c = 9\), \(a = 6.9\) y \(b=RC\). Entonces \(RC=\sqrt{OC^{2}-OR^{2}}\).
Sustituimos los valores: \(RC=\sqrt{9^{2}-6.9^{2}}=\sqrt{81 - 47.61}=\sqrt{33.39}\approx5.8\)

Answer:

\(5.8\)