RiceLord9562
24.03.2020 •
Mathematics
Find the 9th term in the sequence 9,-18,36
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Ответ:
Step-by-step explanation:
hello :
the sequence 9,-18,36 is geometric when the common ratio is:
r= 36/-18=-18/9=-2
let (An) this sequence the n-ieme term is : An=A1×r^(n-1)A1=9 and n=9
A9=9×(-2)^8 =2304
Ответ:
b + 5; when b = 3.4 the distance Sandra rode is 17 miles.
Step-by-step explanation: