#### Derivative: \( 6x + 2 \)
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- Find the derivative of the function \( f(x) = 3x^2 + 2x - 5 \).
- Derivative: \( f'(x) = 6x + 2 \)
- A mixture contains 40% alcohol and 60% water. If 10 liters of water are added to 20 liters of this mixture, what is the new percentage of alcohol?
- Initial alcohol: \( 0.4 \times 20 = 8 \, \text{liters} \)
- Initial water: \( 0.6 \times 20 = 12 \, \text{liters} \)
