anonymous
  • anonymous
A skier has decided that on each trip down a slope, she will do 2 more jumps than before. On her first trip she did 6 jumps. Derive the sigma notation that shows how many total jumps she attempts from her fourth trip down the hill through her twelfth trip. Then solve for how many total jumps she attempts from her fourth trip down the hill through her twelfth trip.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[\sum_{i=4}^{12}2i+4 ; 180 jumps\]
anonymous
  • anonymous
\[\sum_{i=2}^{10}2i+4 ;144 jumps\]
anonymous
  • anonymous
\[\sum_{i=2}^{10}4i+2 ; 234 jumps\]

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More answers

anonymous
  • anonymous
\[\sum_{i=2}^{10}4i+2 : 30\]
anonymous
  • anonymous
I meant 306 jumps for the last one:)
anonymous
  • anonymous
@jim_thompson5910
anonymous
  • anonymous
I think that it's either A or B
jim_thompson5910
  • jim_thompson5910
what made you narrow your choices down to A or B?
anonymous
  • anonymous
It says, "she does it 2 more times to I assumed 2x" at least anyways :)
jim_thompson5910
  • jim_thompson5910
that's correct. The 2i indicates that the number of jumps is increasing by 2 each time
anonymous
  • anonymous
Yay :D
jim_thompson5910
  • jim_thompson5910
notice how they ask ` how many total jumps she attempts from her fourth trip down the hill through her twelfth trip`
jim_thompson5910
  • jim_thompson5910
they don't want us to start at i = 1
anonymous
  • anonymous
ooo I didn't realize that!
anonymous
  • anonymous
So it would be a?
jim_thompson5910
  • jim_thompson5910
yes because it's the only one that starts at i = 4
anonymous
  • anonymous
Thanks so much :))
jim_thompson5910
  • jim_thompson5910
I would practice on how to compute the sum as well
anonymous
  • anonymous
Ok I will !

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