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
oksian1 [2.3K]
3 years ago
13

What is the sum of the n terms of the series 4 + 12 + 36 + 108 + . . . ?

Mathematics
1 answer:
arlik [135]3 years ago
8 0
Sum of n terms of a geometric series is
Sn = a1 (r^n-1)/(r-1)
a1 = 1st term = 4
r = common ratio = 12/4 = 3
so, the sum is
Sn = 4 (3^n-1)/(3-1) = 2(3^n-1)
You might be interested in
PLZ HELP QUICK!!
Amiraneli [1.4K]

Answer:

2205

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
One card from a deck of cards Is selected, it's is replaced, and another card is chosen. What is the probability that the first
Elis [28]

Answer:

1/ 8

Step-by-step explanation:

Given that:

Number of red cards in deck = 26

Number of diamonds in deck = 13

Number of cards in deck = 52

Recall :

Probability = required outcome / Total possible outcomes

Probability of choosing a red :

P(red) = 26 / 52 = 1/2

With replacement :

Probability of diamond :

P(diamond) = 13 / 52 = 1/4

Hence,

Probability of first card red, then second card diamond equals

P(red) * P(diamond)

1/2 * 1/4

= 1/8

6 0
3 years ago
If the table represents a linear function, what's the missing value of y?
Svetach [21]
C) 13

The y value adds one by every x; therefore 4 would be 13.
3 0
3 years ago
Please help anyone !!​
jarptica [38.1K]

Answer:

I cant see

Step-by-step explanation:

909()

8 0
3 years ago
PLZ HELP ASAP!!!!! FIRST PERSON TO ANSWER WILL GET BRAINLIEST!!!!!
Sergeu [11.5K]

Answer:

y+2x=8 y=1/2x+2 2y=4-x

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • What is 3/5 2/3 and 0.65 from least to greatest
    14·2 answers
  • Graph the lines by finding the points of intersection with the axes (intercepts):
    11·2 answers
  • I need help<br> please I really need help
    11·2 answers
  • In the diagram below, BD is parallel to XY. What is the value of x?
    13·1 answer
  • What is the answer ? Please help !!
    8·1 answer
  • In a large lecture class, the professor announced that the scores on a recent exam were normally distributed with a range from 5
    15·1 answer
  • When moniqua went hiking, she saw 6 elm trees. She saw 25 trees in total. What percent of the trees that moniqua saw were elm tr
    8·1 answer
  • I equals 3.14, T equals 5.71, P equals three years. <br><br> I divided by T divided by P equals?
    7·1 answer
  • Can anyone give me the answer and tell me how you did it?
    15·1 answer
  • On a coordinate plane, Point C is at (-3,5) and Point D is at (4,9). What is the distance from point C to point D?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!