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Please help I’m very confused
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5 votes
Please help I’m very confused

Please help I’m very confused-example-1
User SmiffyKmc
by
7.3k points

1 Answer

3 votes

Answer:

147

Explanation:

The ∑ symbol means sum the term inside 4n + 1 from n = 2 to n = 8

Substitute n = 2, 3, 4, 5, 6, 7, 8 into the expression and sum the results , that is

4(2) + 1 + 4(3) + 1 + 4(4) + 1 + 4(5) + 1 + 4(6) + 1 + 4(7) + 1 + 4(8) + 1

= 9 + 13 + 17 + 21 + 25 + 29 + 33

= 147

User Nataki
by
6.7k points
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