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
Natasha_Volkova [10]
2 years ago
7

Write a rule for the nth term of the sequence. Then find a20. Assume the first termis a₁. 86, 79, 72, 65…

Mathematics
1 answer:
hodyreva [135]2 years ago
5 0

Answer:

an = a(n-1) - 7

Step-by-step explanation:

the second term is smaller than the first term 7.

a20 = a19 - 7

a19 = a18 - 7

=> a20 = (a18 - 7) - 7

Then you can accumalate until a1

-> a20 = a1 - 19*7 = 86 - 19*7 = -47

You might be interested in
What is 8 times a half?
xz_007 [3.2K]

Answer:

4

Step-by-step explanation:

my theory would be 4

4 0
3 years ago
Read 2 more answers
Which fraction is bigger 30\100 or 3\10
Igoryamba
They are actually equivalent because 3 is a factor of 30 because 3x10 
And 10 is a factor of 100 so 10x10 
5 0
3 years ago
Read 2 more answers
I feel like being nice, first two answers will get 50 points, the first one to answer gets the brainliest.. (You can put any ans
garik1379 [7]

Answer:

you are so so nice, to give away such big points...may God bless you and stay home and be safe :)

Step-by-step explanation:

1 x 1 is obviously 1

any number multiplied by one that answers that number is the same number.

8 0
3 years ago
Ignore the highlighted ones please thxs
denis23 [38]
I believe it’s D. 2/3
5 0
3 years ago
Read 2 more answers
What are TWO different ways you know when you are finished dividing?
vfiekz [6]
You know you are finished dividing when you can no longer simply & when you plug it back in to check the answer
7 0
3 years ago
Other questions:
  • What is the answer to X^2-2X+5=0 rounded to nearest hundreth
    6·1 answer
  • Which value of x makes the numerical sentence true? 25^ 1/2 × 5 ^–3 = 5 ^x
    14·2 answers
  • For each long-distance call anywhere in the continental United States, a new phone service will charge users $0.60 per minute fo
    13·1 answer
  • What is the total weight, in pounds, of 100 sharks that each weigh 5.015× 10 (to the 3rd power) pounds
    5·1 answer
  • 4 (2x + 1) — 5х + 3x +9
    8·1 answer
  • 2/16 = reducing fractions​
    10·2 answers
  • Please help.<br> Is algebra.
    15·1 answer
  • Pls help!!! Or I can’t pass my class in time!
    11·2 answers
  • What is the simplified form of<br> 3+2−14−24<br> −4<br> when x ≠ 4?
    12·1 answer
  • Sasha practices piano for 45 minutes, 6 days a week. How many minutes does Sasha practice in a week? Use an area model to solve.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!