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
earnstyle [38]
3 years ago
12

Given the sequence -3, 9, -27, 81, -243, ..., find the recursive formula.

Mathematics
1 answer:
Tanzania [10]3 years ago
5 0

Answer:

a_{n} = - 3a_{n-1}

Step-by-step explanation:

There is a common ratio between consecutive terms of the sequence, that is

r = 9 ÷ - 3 = - 27 ÷ 9 = 81 ÷ - 27 = - 243 ÷ 81 = - 3

The recursive formula is of the form

a_{n} = ra_{n-1} = - 3a_{n-1}

You might be interested in
If Justin can type 408 words in 4 minutes, how many words can he type per minute?
Pavel [41]

Answer:

102

Step-by-step explanation:

408 words / 4 min = 102 words per min

3 0
3 years ago
Read 2 more answers
PLEASE HELP 15 POINTS...PLEASE HELP
sasho [114]

Answer:

-4

Step-by-step explanation: it is intercepting the -4 so i think -4 is the right answer

8 0
3 years ago
Read 2 more answers
40% of the children in a sports club play badminton. 25% of the children who play badminton also play squash. There are 11 child
Keith_Richards [23]

Answer:

There are 110 children total in the sports club

Step-by-step explanation:

To get this answer, its actually easier than it seems. You might need a calculator however.

First you start with the 11 children who play both badminton and squash, then, you divide that by 0.25 (25%) to get 44.

Next you take 44 and divide it by 0.4 (40%) to get 110.

And there you go! If you want to make sure you got it right simply start with 110 and multiply it by 0.4 then multiply the number/decimal you get by 0.25. You should get 11 to confirm your answer :)

6 0
3 years ago
The average age of the six people on a winter ski trip was twenty-six. An eleven year-old had to leave the trip early to attend
guapka [62]
It’s will be 25 or 36 ?
3 0
2 years ago
a large aquarium has 6 more fish than a small aquarium. There are 19 fish in a large aquarium. How many fish are in a small aqua
Firlakuza [10]
13 fish are in the small aquarium.
5 0
3 years ago
Read 2 more answers
Other questions:
  • You are biking at a speed of 18 miles per hour
    12·1 answer
  • What is the graph of y = 2/3
    14·2 answers
  • A realtor makes 3% commission. What is the commission on a 200,000 house? Show work.
    6·2 answers
  • The length of a rectangle is 5 cm greater than its width. The perimeter is 42 cm. What are the dimensions of the rectangle.
    13·1 answer
  • Hey pls show some working i need some serious help
    6·1 answer
  • Show that the triangles are similar
    5·1 answer
  • 1/4 is equivalent to 1/6 because both models have 1 shaded part true or false
    14·1 answer
  • Carmen's butterfly has wings that are 25 centimeters long. How many millimeters is the length of the wings? (1 point)
    6·1 answer
  • 13 is 5% of what number?
    10·2 answers
  • If x = 8 and y = -3, evaluate the following expression: 20 - 5y + 2x​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!