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
Nana76 [90]
3 years ago
10

A recursive rule for an arithmetic sequence is a1 = 4; an = an-1 + 3 . What is an explicit rule for this sequence? (Picture atta

ched) please help? I don't remember what type of equation to use for these kinds of problems...

Mathematics
2 answers:
Slav-nsk [51]3 years ago
7 0
Answer: 3n+1
(no need to type in the "a_n" or "an" part, as it's already done)

--------------------------------------------------------------------------

Explanation:

The first term is a1 = 4 since it is given to us
The common difference is d = 3. This is the value that we add to each term to get the next as the recursive steps shows when we write a(n) = a(n-1)+3
In other words,
nth term = [ (n-1)st term ] + 3
next term = (previous term) + 3

Using a1 = 4 and d = 3, we get the following
an = a1+d(n-1)
an = 4 + 3(n-1)
an = 4+3n-3
an = 3n + (4-3)
an = 3n+1
Vlad [161]3 years ago
3 0

Answer:

a_n=4+3(n-1)

Just took the test!



You might be interested in
Please help! number 14
Lelu [443]

Obtuse angles are over 90 degrees but less than 180 degrees. So minimum y can be is 10: (5 x 10) + 45 = 95 degrees (which is more than 90). Maximum for y is 26: (5 x 26) + 45 = 175 (which is less than 180 degrees)

8 0
3 years ago
Help<br> help<br> help<br> help<br> help<br> help
Shalnov [3]
Have fun but I think it is b and e
5 0
3 years ago
Read 2 more answers
Please help me with this. This problem is actually making my life worst at the moment. Please, someone, help me.
Xelga [282]
OMG !!!!!!! I HAVE THE SAME QUESTION TO ASK

7 0
3 years ago
Brainliest for correct answer please help me
liraira [26]

Answer:

b

Step-by-step explanation:

7 0
3 years ago
Which law would you use to simplify the expression (x^4)^9
drek231 [11]
Power of a power is the law<span />
3 0
3 years ago
Other questions:
  • A farmer found 10 out of every 25 tomato plants will grow. This year, the farmer planted 200 tomato plants.how many plants can t
    7·2 answers
  • Help a brother out!!! Math prom worth 20!! And explain please
    14·1 answer
  • What is the answer to this equation
    5·1 answer
  • Help me solve the equations, please. Very urgent!!
    7·2 answers
  • Cindy saves $420 each month . her monthly salary is $ 2100. what is the ratio of the amount cindy saves to the amount she earns
    12·1 answer
  • Is it illegal in california to eat raw oranges in bathroom?
    13·2 answers
  • ABC is translated 4 unite to the loft and 8 unito up, thon roflooted
    13·1 answer
  • Which three values are greater than
    13·1 answer
  • Hurry Please). The function f (x) models the value of goods that are imported into the United states, where x is the number of y
    12·1 answer
  • HELPPPPPP SOLVE FOR X
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!