anonymous
  • anonymous
Which of the following is equivalent to... Will fan+medal
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Which of the following is equivalent to \[\sum_{n=3}^{5}2n+3\] 5 ?
anonymous
  • anonymous
forget that 5that is behind the question mark
anonymous
  • anonymous
I can't see,n=3 or 2 or 8 or 9 ? :D

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anonymous
  • anonymous
what do you mean?|dw:1378658209102:dw|
anonymous
  • anonymous
oh nice:)
anonymous
  • anonymous
What???
anonymous
  • anonymous
oh nothing! first,you should put 3 instead of n and you will find this: (2x3)+3
anonymous
  • anonymous
it's 9
anonymous
  • anonymous
ok?
anonymous
  • anonymous
ok,got it?
anonymous
  • anonymous
that isnt one of the answer choices
anonymous
  • anonymous
ok,wait!we should do alot of do!
anonymous
  • anonymous
38 42 22 33
anonymous
  • anonymous
and second you should put 4 instead of n,so we have: (2x4)+3 and it's 11...
anonymous
  • anonymous
now,we have 9 and 1 ok?
anonymous
  • anonymous
do you understand the thing i have said?
anonymous
  • anonymous
@AwesomeB
anonymous
  • anonymous
ok, i get it
anonymous
  • anonymous
and third,we should put 5 instead of n and we have: (2x5)+3 = 13 and then, 9+11+13 = ?
anonymous
  • anonymous
@AwesomeB , why didn't you answer?
anonymous
  • anonymous
32
anonymous
  • anonymous
32 or 33 ? :|
anonymous
  • anonymous
that is 33 , D is correct :)
anonymous
  • anonymous
any problem?
anonymous
  • anonymous
@AwesomeB
anonymous
  • anonymous
why 33?
anonymous
  • anonymous
if when we added it up it was 32
anonymous
  • anonymous
9+11 = 20 20+13 = 33 not 32
anonymous
  • anonymous
oh my bad
austinL
  • austinL
\(\large{\sum\limits_{n=3}^{5}2n+3}\) \((2(3)+3)+(2(4)+3)+(2(5)+3)=~?\)
anonymous
  • anonymous
33
austinL
  • austinL
Correct.

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