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
patriot [66]
3 years ago
5

Given the sequence rn defined recursively below, find r3. r1rn=2=−rn−1+n−2

Mathematics
1 answer:
kifflom [539]3 years ago
7 0

Answer:

r_3=3

Step-by-step explanation:

Given:

r_1=2\\r_n=-r_{n-1}+n-2

We want to find the value of r_3 .

\\r_2=-r_{2-1}+2-2\\r_2=-r_1\\r_2=-2\\\\r_3=-r_{3-1}+3-2\\r_3=-r_{2}+1\\r_3=-(-2)+1\\r_3=2+1\\r_3=3

You might be interested in
What is the equation of the graphed line?
Mashutka [201]
<u />&#10;Look\ at\ the\ picture.\\\\m=\frac{-5}{+1}=-5\\\\\boxed{y=-5x}

7 0
2 years ago
Assume the total cost of a tertiary education will be R75 000 when your child enters university in 18 years. You presently have
marshall27 [118]

Answer: you need 5000 more

Step-by-step explanation: 70000 + 5000= 75000

8 0
2 years ago
Prediction: It rains 2 out of the last 12 days in March. If this trend continues, how many rainy days would you expect in April?
Vladimir79 [104]

Answer:

I would expect rain 5 days

Step-by-step explanation:

Please kindly see the attached files for explanation.

8 0
2 years ago
What is the nth term of this sequence below?   <br><br> 2, 5, 8, 11 , 14. ......etc.
Gemiola [76]
The nth term is 26 because each number is being added by 3. for example: 2+3=5, 5+3=8, etc.
5 0
3 years ago
Which statements are true regarding the prism? Check all that apply.
AURORKA [14]

id help but i dont see anything

7 0
2 years ago
Read 2 more answers
Other questions:
  • Convert 4800 inches to feet
    7·2 answers
  • For a special order, The ABC company manufactured 400 shirts. Sweatshirts were priced at $35 each and T-shirts at $25 each. The
    15·1 answer
  • The second hand on a clock is 8 cm long. What is the distance the tip of the second hand travels in 10 minutes?
    14·2 answers
  • How do you determine the number of zeros to annex in the product of 0.002 and 0.003?
    10·1 answer
  • I need help i dont understand what's it asking me to do ​
    14·1 answer
  • Comment if you have no friends like me
    10·1 answer
  • 9-(7-3x) = 4+x-(3-x) solve for x
    10·1 answer
  • Sierra borrows $310 from her brother to buy a lawnmower. She will repay $85 to
    14·1 answer
  • Evaluate the expression. check all possible sets that the solution may belong in. 40-5^2
    6·2 answers
  • Z &gt; 34. Which of the following statements is the best way to describe the value of z?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!