olamagdziak2007
02.09.2019 •
Mathematics
Write an expression that shows how to use the halving and doubling strategy to find 28×50
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Ответ:
Ответ:
Given that P = (-2, 7) and R = (1, 0)
A point that is 2/3 of the distance PR from P, so that will be:
-2 + (1-(-2)) * 2/3 , 7 + (0-7) * 2/3
Since they are asking only for the y-coordinate, we just need to calculate:
7 + (0-7) * 2/3 = 7 - 14/3 = (21 - 14) / 3 = 7/3 = 2.3