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antschilt519
02.08.2019 •
Mathematics
Arope is swinging in such a way that the length of the arc traced by a knot at its bottom end is decreasing geometrically. if the third arc is 20ft and the seventh arc is 12 ft. what is the length of the arc on the sixth swing?
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Ответ:
Ответ:
it means the difference between the length of every arc is the same
and we know that
the third arc is 20 ft and the seventh arc is 12 ft
length of the sixth arc = ?
third arc = 20ft
fourth arc = 18ft
fifth arc = 16 ft
sixth arc = 14 ft
seventh arc = 12ft
Now you see that the difference is same and it is decreasing geometrically.
Thus the length of the sixth arc is 14 ft.
Ответ: