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Terrilady5
03.06.2020 •
History
Which of these is a contribution of the Roman Empire to western civilization?
A)
stirrups
B)
printing press
C)
trench warfare
D)
Romance Languages
Solved
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Ответ:
Step-by-step explanation:
A positive parabola is one that has a + sign out front or no sign at all (and the positive is understood). A positive parabola opens like a cup with a bottom. Therefore, the positive parabola has a min value. A negative parabola opens upside down, like a mountain with a peak. Therefore, the negative parabola has a max value.