Questions: Question 2: Round to the nearest tenth.

Question 2: Round to the nearest tenth.
Transcript text: Question 2: Round to the nearest tenth.
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Solution

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Find \(x_1\) and \(x_2\).

Find \(h\) using the upper triangle.

In the upper triangle, we have an angle of 27.3° and the hypotenuse is 12.7 cm. We can use the sine function to find the height \(h\): \(\sin(27.3^\circ) = \frac{h}{12.7}\) \(h = 12.7 \times \sin(27.3^\circ)\) \(h \approx 12.7 \times 0.4592\) \(h \approx 5.83 \text{ cm}\)

Find \(x_1\) using the lower triangle.

In the lower triangle, we have an angle of 19.2° and the height \(h \approx 5.83\). We can use the tangent function to find \(x_1\): \(\tan(19.2^\circ) = \frac{h}{x_1}\) \(x_1 = \frac{h}{\tan(19.2^\circ)}\) \(x_1 \approx \frac{5.83}{0.3487}\) \(x_1 \approx 16.72 \text{ cm}\)

Find \(x_2\) using the lower triangle.

In the lower triangle, we have an angle of 19.2° and \(x_1 \approx 16.72\). We can use the cosine function to find \(x_2\): \(\cos(19.2^\circ) = \frac{x_1}{x_2}\) \(x_2 = \frac{x_1}{\cos(19.2^\circ)}\) \(x_2 \approx \frac{16.72}{0.9446}\) \(x_2 \approx 17.70 \text{ cm}\)

\(x_1 \approx \boxed{16.7}\) cm, \(x_2 \approx \boxed{17.7}\) cm

\(x_1 \approx \boxed{16.7}\) cm \(x_2 \approx \boxed{17.7}\) cm

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