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what is the 9th number? 8,5,2,1
a.-10 b.-16 c.-19 d.-22​


Sagot :

what is the 9th number? 8,5,2,1
a.-10 b.-16 c.-19 d.-22​

b.-16

solution:
View image Shimishiba
the answer is A. -10

Explanation:

an=8+(-3)(n-1)
an=8-3n-3x-1
an=8-3n+3
an=-3n+11