80 questions how many can I get wrong to get 75%
2 answers:
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The sum would be written as:
It goes from n=1 to =5 because it is the first 5 terms of the sum.
The sequence has a first term, a₁, of 1. The common difference, d, is 3. The explicit formula would then be:
Using the distributive property to simplify, we would have:
It goes from n=1 to =5 because it is the first 5 terms of the sum.
The sequence has a first term, a₁, of 1. The common difference, d, is 3. The explicit formula would then be:
Using the distributive property to simplify, we would have: