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
Anit [1.1K]
3 years ago
11

In a geometric sequence, a2=2, a3=16, and a4=128.

Mathematics
1 answer:
Oduvanchick [21]3 years ago
4 0

Answer:

an = 1/4(8)^n-1

Step-by-step explanation:

Given the following in a geometric sequence, a2=2, a3=16, and a4=128.

nth term of a sequence = ar^n-1

a is the first term

r is the common ratio

r = a3/a2 = a4/a3

r = 16/2 = 128/16

r = 8

a2 = ar

2 = 8a

a = 2/8

a = 1/4

The nth term by substituting the parameters will be;

an = 1/4(8)^n-1

You might be interested in
Karen has 2 potatoes and she and she smashed one on your head how many does she have now
Tatiana [17]
One potato...at least i think so
6 0
2 years ago
(-6x3-4x2-8)+(x3-x2-9x+4) add together and simply
Aleksandr [31]

Answer:

-5x³ -5x² -9x - 4

Step-by-step explanation:

(-6x³-4x²-8)+(x³-x²-9x+4)

Add the like terms.

-6x³ and x³ are like terms. -6x³ + x³ = -5x³

-4x² and -x² are like terms. -4x² - x² = -5x²

-8 and 4 are like terms. -8 + 4 = -4

-6x³-4x²-8 +x³-x²-9x+4 = -5x³ -5x² -9x - 4

6 0
3 years ago
What’s da answer<br> Need helps
natima [27]

Answer:

I think the answer is 432 cubic inches( in^3). Answer is the first option.

6 0
3 years ago
У = 3х – 1<br>у = 3y= -13<br>​
Elina [12.6K]

Answer:

y=1/3x-1/3

Step-by-step explanation:

6 0
3 years ago
Convert 12 minutes 35 seconds to seconds<br><br>:_​
zalisa [80]

Answer:

755s

Step-by-step explanation:

60*12+35=755

This is the way

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the functions below could have created this graph?
    6·1 answer
  • VERY IMPORTANT QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    12·1 answer
  • Carly orders 6 pizzas for her birthday party if she invited 9 friends how much pizza will Carly and her friends each receive?
    15·2 answers
  • You will need 10 CAT6 cables for wiring computers in a new office. A local computer store sells them for $4.00 each plus 6% sale
    13·1 answer
  • How would you factor this linear expression? 2x 6
    8·1 answer
  • What is the area of the sector shown in the diagram below?
    14·1 answer
  • A bread recipe calls for 4 cups of white flour for every 5 cups of whole-wheat flour. How many cups of whole-wheat flour are nee
    14·2 answers
  • Kimberly bought a pair of earrings on sale for 55 cent she paid it using 3 quarters How much change should she get back?
    11·1 answer
  • 8x + 4y = 16 7y = 15 - x
    5·1 answer
  • In a set of 1,000 integers from 1 to 1,000, an integer chosen at random on a single trial should be an integer from 1 to 25 abou
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!