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Dmitry_Shevchenko [17]
3 years ago
14

How many ways can 7 students come in first, second, and third place in a math contest? Omg one student can earn each place

Mathematics
1 answer:
Lisa [10]3 years ago
5 0
I got 441 times using this formula 7x3^2=x
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How many terms are there in the following expression: 3a + 3ab + 7b – 2c – 4d
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Lets count...
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3 years ago
10) -15xy + 25x ????????????????????
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2 years ago
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Answer:

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7 0
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