3 years ago

Write an explicit formula for an the nth term of the sequence 75,15,3,...

Mathematics

2 answers:

lbvjy [14]3 years ago

7 0

Answer:

75(1/5)^n-1

Step-by-step explanation:

I just did it.

Usimov [2.4K]3 years ago

3 0

Step-by-step explanation:

it is geometric

so we will use this equation:

a(n)=a1*(r)^(n-1)

and we have a(1)=75 , r=15/75=3/15=1/3

explicit formula: a(n)=75*(1/3)^(n-1)

hope this helps

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