apodoltsev2021
16.10.2019 •
Mathematics
Chris spent half of his money on a pair of headphones.then he spent half of his money on cds.finally,he spent $12.75 on a book.how much money did chris have to begin with
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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.