1. **State the problem:** Solve the quadratic equation $$\frac{\sqrt{3}}{130}v^2 - \frac{4488 - 2176\sqrt{3}}{13}v + \frac{115600}{65} = 0$$ for $v$, giving all answers to three decimal places.
2. **Formula used:** For a quadratic equation $$ax^2 + bx + c = 0$$, the solutions are given by the quadratic formula:
$$v = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
3. **Identify coefficients:**
$$a = \frac{\sqrt{3}}{130}, \quad b = -\frac{4488 - 2176\sqrt{3}}{13}, \quad c = \frac{115600}{65}$$
4. **Calculate discriminant:**
$$\Delta = b^2 - 4ac$$
5. **Calculate $b^2$:**
$$b^2 = \left(-\frac{4488 - 2176\sqrt{3}}{13}\right)^2 = \frac{(4488 - 2176\sqrt{3})^2}{169}$$
6. **Calculate $4ac$:**
$$4ac = 4 \times \frac{\sqrt{3}}{130} \times \frac{115600}{65} = \frac{4 \times \sqrt{3} \times 115600}{130 \times 65}$$
7. **Simplify $4ac$:**
$$130 \times 65 = 8450$$
$$4ac = \frac{4 \times 115600 \times \sqrt{3}}{8450} = \frac{462400 \sqrt{3}}{8450}$$
8. **Calculate discriminant numerically:**
Calculate $b$ numerically:
$$4488 - 2176\sqrt{3} \approx 4488 - 2176 \times 1.732 = 4488 - 3769.632 = 718.368$$
So,
$$b = -\frac{718.368}{13} \approx -55.259$$
Calculate $a$ numerically:
$$a = \frac{1.732}{130} \approx 0.01332$$
Calculate $c$ numerically:
$$c = \frac{115600}{65} = 1778.462$$
Calculate discriminant:
$$\Delta = b^2 - 4ac = (-55.259)^2 - 4 \times 0.01332 \times 1778.462$$
$$= 3053.56 - 94.82 = 2958.74$$
9. **Calculate roots:**
$$v = \frac{-b \pm \sqrt{\Delta}}{2a} = \frac{-(-55.259) \pm \sqrt{2958.74}}{2 \times 0.01332} = \frac{55.259 \pm 54.39}{0.02664}$$
10. **Calculate each root:**
$$v_1 = \frac{55.259 + 54.39}{0.02664} = \frac{109.649}{0.02664} \approx 4115.785$$
$$v_2 = \frac{55.259 - 54.39}{0.02664} = \frac{0.869}{0.02664} \approx 32.609$$
**Final answers:**
$$v \approx 4115.785, \quad v \approx 32.609$$
Quadratic Roots 5417F4
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