Write an explicit formula for the following sequence. Find the twentiethtwentieth term. 33, 44, 55, 66, 77, ...

asked Aug 25, 2018 148k views

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f(n)=a1+(n-1)b
f(20)=33+(20-1)11
f(20)=33+(19)11
f(20)=33+209
f(20)= 242

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