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Cheyenneross366
21.04.2020 •
Mathematics
In your own words, what is relative frequency?
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Ответ:
A frequency is the number of times a given datum occurs in a data set.
Step-by-step explanation:
Ответ:
A: 8x^2 + 2x - 1
B: 5x - 2x^2 + 18
C: 34x - 6x^2 - 40
D: 70 - 28x
Step-by-step explanation:
A: (2x+1)(4x-1) = 8x^2 - 2x + 4x - 1 = 8x^2 +2x - 1
B: (2x - 9)(-x -2) = -2x^2 -4x + 9x + 18 = 5x - 2x^2 + 18
C: (3x - 5)(8 - 2x) = 24x - 6x^2 - 40 + 10x = 34x-6x^2-40
D: (10-4x) x 7 = 70-28x