Question

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 the number of total jumps from her second to tenth trips.

Answer 1

Give me a sec i'm a little rusty

Answer 2

Want me to explain or just want the answer :)

Answer 3

explain

Answer 4

she will do 2 more jumps than before" means that the common difference between each two jumps is 2

Answer 5

since in the trip number 1 she jumped 6 times
then the constant for 0 jumps is 4

Answer 6

get it?

Answer 7

yes

Answer 8

just plug in the info

Answer 9

Ill start it

Answer 10

I did the arithmetic seq,
You can do it by hand, w/o much work .

plug in n=2 into (4+2n)
then plug in n=3 into (4+2n)
then plug in n=4 into (4+2n)
etc until you get to n=10. Add them all up.

Answer 11

Oh wait
your not trying ti find the number of jumps

Answer 12

A 144 jumps
B; 180 jumps
C ; 234 jumps
D ; 306 jumps

Answer 13

Oh ok now that makes sense

Answer 14

Do the thing i said above

Answer 15

and see how much you get

Answer 16

it takes time don't worry

Answer 17

where do you plug the numbers into sigma

Answer 18

That comes from the sequence look it should come out like this
8 + 10 + 12 + 14 + 16 + 18 + 20 + 22 + 24
Those are the number of jumps for how the sequence is going
Just add them

Answer 19

144

Answer 20

Yep there you go, a is the answer

Answer 21

yayyy thank you :)

Answer 22

Medal?? :D

Answer 23

can you help with more? :D

Answer 24

Thanks, good luck

Answer 25

Um sure

Answer 26

Find the 6th partial sum of

Answer 27

A 78,432
B 11,204
C 9,555
D 2,387

Answer 28

6th partial sum of?

Answer 29

Oh wait never mind

Answer 30

Want me to explain or just answer?

Answer 31

answer please

Answer 32

alright

Answer 33

C would be the answer

Answer 34

Identify whether the series(picture) is a convergent or divergent geometric series and find the sum, if possible.

Answer 35

Answer? or explain :)

Answer 36

A This is a convergent geometric series. The sum is 48.
B This is a divergent geometric series. The sum is 48.
C This is a convergent geometric series. The sum cannot be found.
D This is a divergent geometric series. The sum cannot be found

Answer 37

answer

Answer 38

K let give me a sec to work the problem

Answer 39

A would be the answer

Answer 40

I have to go :( good luck with the exam

Answer 41

noooooo

Answer 42

I'm sure someone will come in and help you. is it timed?

Answer 43

sort of