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The pattern below follows the rule, "starting with a value of 3, every consecutive row has a value that is 2 less than twice the value of the previous row." What is the value of the for the 5th row
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5 votes
The pattern below follows the rule, "starting with a value of 3, every consecutive row has a value that is 2 less than twice the value of the previous row." What is the value of the for the 5th row

User Feychu
by
5.2k points

1 Answer

5 votes

Answer: 18

Explanation:

Letting
T_(n) denote the value of the nth row,


T_(1)=3\\\\T_(2)=2(3)-2=4\\\\T_(3)=2(4)-2=6\\\\T_(4)=2(6)-2=10\\\\T_(5)=2(10)-2=\boxed{18}

User ElaRosca
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