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
stiv31 [10]
3 years ago
8

Please help!!! Don’t understand

Mathematics
1 answer:
allochka39001 [22]3 years ago
6 0

Writing rules for sequences often requires a bit of creative thinking. Sometimes it helps to look a the differences between terms. After you have computed differences, you can compare them to constants, or terms in the sequence, or check to see if they have some sequence of their own. Sometimes the sequence is constructed so it has a pattern that is replicated over and over.

12. Differences are 5, 3, 8, 11. We see that the last of these correspond exactly to terms in the sequence. In fact, it appears that each term in the sequence is the sum of the previous two. Then the recursion relation is

... a[1] = 3

... a[2] = 8

... a[n] = a[n-1] + a[n-2]

_____

13. It appears that each term of the sequence is the opposite of the term 3 before it.

... a[1] = 1

... a[2] = 2

... a[3] = 1

... a[n] = -a[n-3]

You might be interested in
The cost for 9 children to go to a
gregori [183]
12 broski done no ina bit g sfe my Erika
3 0
3 years ago
Read 2 more answers
4. Add<br> f(x)= 4x?+5x-1<br> g(x) = 2x2 + 5x+3
Maurinko [17]
<h3>Answer:</h3>

A. 3x² +6

<h3>Explanation:</h3>

(f-g)(x) = f(x) -g(x) = (4x²+1) -(x²-5) . . . . . substitute the function definitions

... = 4x² +1 -x² +5 . . . . . . . . . . . eliminate parentheses

... = (4-1)x² +(1+5) . . . . . . . . . . . collect like terms

... = 3x² +6

6 0
2 years ago
Pls answer if you know!
Leokris [45]
Everything = 180 degrees
2X = 180 - 40 - 40 -30
2x = 70
X= 35
4 0
3 years ago
Calculate the area of this composite shape. Hint: The figure is made up of a rectangle and a semi-circle. Use 3.14 for the value
White raven [17]

Answer:ok

Step-by-step explanation:ok

3 0
3 years ago
What are the answers
Ray Of Light [21]

Answer:

Insert question here--->

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • How do I find x and y?
    14·1 answer
  • Follow the process of completing the square to solve 2x^2 + 8x - 12 = 0. After adding B^2 to both sides of the equation in step
    9·1 answer
  • Statistics question, please help.
    14·2 answers
  • The claim is that for the population of adult​ males, the mean platelet count is μ&gt;217. The sample size is n=50 and the test
    7·1 answer
  • 2x=12 show how you got the answer
    12·2 answers
  • If (1,0) is an ordered pair of the function f(x), which of the following is an ordered pair of the inverse of f(x)?
    8·1 answer
  • Can someone solve this -6y-3=3-6y
    13·2 answers
  • Three more than twice a number is 15 in algebraic equation
    9·1 answer
  • What is 5g+7g and g(5+7)?
    14·2 answers
  • One more !!!!! Plzzz
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!