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
nalin [4]
3 years ago
7

An arithmetic sequence has this recursive formula:

Mathematics
1 answer:
horsena [70]3 years ago
4 0

Answer:

\text{\bf{C.}}\quad a_n=4+(n-1)(-7)

Step-by-step explanation:

An arithmetic sequence that is described by the explicit formula ...

  a_n=a_1+(n-1)d

can also be described by the recursive formula ...

  \left \{\begin{array}{l}a_1=\text{(first term)}&a_n=a_{n-1}+d&\end{array}\right.

Matching parts of the formulas, we see that a1 = 4, d = -7. Putting these values into the explicit formula gives ...

a_n=4+(n-1)(-7)

You might be interested in
The width of a rectangle is 6 less than half the length. If x represents the length, which equation could be used to find the wi
Shtirlitz [24]

Answer:

C. y=1/2x-6

Step-by-step explanation:

The correct answer is C. y=1/2x-6.

If we are finding 1/2 of the length, and the length is represented by x, than we would have 1/2x.

It also says 6 less than halve of the length, so we would represent that as 1/2x-6, and that shows us the proper equation to find the width.

Hope this helps!

5 0
3 years ago
Help will give max points and branlisest plls HELP ASAP BY 1230pt thanks ;]
Murljashka [212]

Answer:

120cm^3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
There are 10 boys and 12 girls in the tennis club. The coach wants to select two players to practice first. Which statements are
Sidana [21]
Since there are 22 participants all in all. The possible combinations of the two picked for practice first is, 
                               22C2 = 231
The probability of picking one from each gender will be solved through the calculation below.
                              (10C1)x(12C1) / 231 = 40/77
In percentage, the answer would be approximately 52%. Thus, the answer is the first choice. 
6 0
3 years ago
Read 2 more answers
Find the measure of the missing angle *
gizmo_the_mogwai [7]

Answer:

68 degree

Step-by-step explanation:

Please mark as brainliest

4 0
2 years ago
The graph of y=e* is transformed as shown in the graph below. Which equation represents the transformed
butalik [34]

Answer:

what are the answers

Step-by-step explanation:

okay the answer is B. y=e^x+3

7 0
2 years ago
Other questions:
  • A refrigerator contains 6 apples, 5 oranges, 10 bananas, 3 pears, 7 peaches, 11 plums, and 2 mangos. imagine you stick your hand
    12·1 answer
  • Someone plz help me I’ll mark brainliest
    11·2 answers
  • (-5/6) + c = (-11/12)
    6·2 answers
  • You have $59 in a bank account. You need at least $200 to avoid bank fees. Wrote and solve and inequality to find how much more
    9·1 answer
  • Which statement is true regarding the diagram of circle P?
    8·2 answers
  • write an equation for a circle with a diameter that has endpoints at (-4, -7) and (-2, -5). round to the nearest tenth if necess
    12·1 answer
  • Wendy wants to show people how medicines that doctors use now would have been helpful during the Civil War
    11·1 answer
  • A candidate scored 32 marks out of 80, find his percentage score
    6·1 answer
  • Pls Answer the Question in the Photo
    7·1 answer
  • Find the length of a photograph whose width is 10 inches and whole proportions are the same as a 5-inch by 8-inch photograph.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!