A battery manufacturing plant spends C dollars per hour to produce "D"-size batteries. An efficiency consultant has determined that C is related to the number of batteries produced per hour, x, according to the equation C(x) = 0.02x2 - 3x + 217.5. What number of batteries per hour minimizes the cost?
Correct Answer:
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Q15: Solve by completing the square.
2x2 - 5x
Q16: Write a quadratic equation that has the
Q17: Find the vertex for the graph of
Q18: Find the imaginary solutions: x2 - 6x
Q19: Find all real and imaginary solutions to
Q20: Solve using the quadratic formula: 3x2 +
Q21: Solve the given inequality and express
Q23: Solve the given inequality and express the
Q24: The monthly profit P in dollars that
Q25: Solve the inequality. Graph the solution set.
x2
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