Geo777
24.02.2021 •
Mathematics
The renvue (in dollars from manufacturing and selling x calculators in a day is given by the polynomial -2x²+130x. the cost of manufacturing & selling x calculators in a day is givem by the polynomial 0.375x²+15x. complete parts a & b below i need only part b
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Ответ:
Step-by-step explanation:
m∠2=m∠4=120° ( vertically opposite angles)