Final answer:
To solve the summation (-4+5n) from n=2 to 10, each term is calculated by substituting values of n into the expression and summing them up to yield the series result.
Step-by-step explanation:
The student has asked to solve a summation problem: 10 on top of Σ n=2 is under the Σ -4+5n. This can be rewritten as evaluate the sum from n equals 2 to 10 of the expression (-4+5n).
To solve this, we calculate the sum of the results of the expression for each value of n from 2 to 10. Each term of the sequence is obtained by substituting n with the values from 2 to 10 in the expression -4+5n.
- For n=2: -4+5(2) = 6
- For n=3: -4+5(3) = 11
- And so on, until
- For n=10: -4+5(10) = 46
Then we add all the values obtained for each n to get the final result of the summation.