kalcius674
19.05.2021 •
Mathematics
Find a1 of a geometric sequence if a6= 160 and a9= 1280.
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Ответ:
2 hours
Step-by-step explanation:
50 metres / 4 hours = 25 metres / x hours
cross multiply both sides
50x = 25(4)
50x = 100
divide 50 both side
x = 100/50
x = 2 hours