anonymous
  • anonymous
Find the sum of the summation of 2 i minus 9, from i equals 3 to 10.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
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anonymous
  • anonymous
\[\sum_{3}^{10}2i-9\]?
anonymous
  • anonymous
yes, except at the bottom of that E thing, its i=3
anonymous
  • anonymous
got it a few steps are needed ready?

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More answers

anonymous
  • anonymous
yes
anonymous
  • anonymous
first replace \(i\) by \(3\) in \(2i-9\) what do you get ?
anonymous
  • anonymous
-3?
anonymous
  • anonymous
lol yeah \(-3\)!!
anonymous
  • anonymous
now hold on to that number for a sec replace \(i\) by \(10\) in \(2i-9\) what do you gte ?
anonymous
  • anonymous
11
anonymous
  • anonymous
ok now add those two numbers
anonymous
  • anonymous
8?
anonymous
  • anonymous
yup now divide that by 2
anonymous
  • anonymous
4
anonymous
  • anonymous
one more step
anonymous
  • anonymous
which might be a little confusing you actually have 8 terms to add up \(10-3+1=8\) take your 4 and multiply it by 8
anonymous
  • anonymous
32
anonymous
  • anonymous
and that is your final answer
anonymous
  • anonymous
want to check it?
anonymous
  • anonymous
I turned in the test. It was right. Thank you so much!
anonymous
  • anonymous
you are quite welcome

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