1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
never [62]
3 years ago
12

Use sigma notation to represent the sum of a geometric series with a first term of 3 and a common ratio of . A. B. C. D.

Mathematics
1 answer:
maksim [4K]3 years ago
5 0

Answer:

\Sigma_{k=1}^{n}[3(\frac{10}{9} )^{k-1}]

Step-by-step explanation:

A geometric sequence is a list of numbers having a common ratio. Each term after the first is gotten by multiplying the previous one by the common ratio.

The first term is denoted by a and the common ratio is denoted by r.

A geometric sequence has the form:

a, ar, ar², ar³, . . .

The nth term of a geometric sequence is ar^{n-1}

Therefore the sum of the first n terms is:

\Sigma_{k=1}^{n}(ar^{k-1})

Given a geometric series with a first term of 3 and a common ratio of 10/9, the sum of the first n terms is:

\Sigma_{k=1}^{n}[3(\frac{10}{9} )^{k-1}]

You might be interested in
What should I read what just what
Crazy boy [7]
Septimus heap it's a good book!!!!
4 0
3 years ago
Read 2 more answers
Graph the system of equations.<br> 2x - y=4<br> 1 x - y = -2
dybincka [34]

PPLMway will help

Step-by-step explanation:

4 0
3 years ago
Emily made $12.50 selling lemonade for 2 hours. If Emily wants to save $100, approximately how many hours would she need to sell
Ne4ueva [31]

Answer:

she needs to work 16 hours

8 0
3 years ago
I was wondering if you can help me with math problem​
oee [108]

Answer:

what is you math promblem.I think you are new to this app but if you want help with your homework you press the  button that say ask a question and then u pick a subject and post it so other people could help you.But I can't help becuase you did not say what you need help on or your question

Step-by-step explanation:

7 0
3 years ago
Here!!!!!!!!!!!!!!<br><br>For Kawaii cos 2007<br><br><br>(it needs more words lol.)
Naily [24]

AAAAAAAAAAAAAAAAAA  AAAAAAAAAA A AAAAAAAAA AAAAAAAAAA AAAAAAAAAAA A A A AAAAAAA A A    AAAAA  AAAA.

Step-by-step explanation:

E

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the measure of /_ C?
    8·1 answer
  • 40 tens equal how many hundreds
    12·2 answers
  • Cuantas tazas hay en 2 galones?
    15·1 answer
  • I stink at math how about some smart people check out my page and anwser some questions I give brainiest for correct
    13·1 answer
  • Which list of elements is arranged in order of increasing atomic number?
    7·1 answer
  • Three students need to produce a prime factorization of 48. Donna states that the first factors in the tree should be 6 and 8. L
    13·2 answers
  • Sandy's class is going to
    11·1 answer
  • A traffic engineer records a sample of the types of vehicles that cross a bridge. She counts 112 passenger cars, 18 light trucks
    15·1 answer
  • PLEASE PLEASE PLEASEEE! THIS IS DUE TOMORROW! ILL THANKS AND WHAT EVER ELSE I CAN TO WHOEVER GETS THIS!
    9·1 answer
  • Caitlyn pays $2.20 in postage to mail a CD to a friend. She uses 43-cent stamps and 6-cent stamps. How many of each stamp did Ca
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!