Marcinrajmundkrak
Marcinrajmundkrak Marcinrajmundkrak
  • 26-03-2020
  • Mathematics
contestada

here are the first four tearms of a sequence 1, 11, 22, 37, find and express in terms of n the nth term of this sequence

Respuesta :

thamimspartan thamimspartan
  • 04-04-2020

2n² + n + 1

Explanation:

The sequence is 4, 11, 22, 37

Difference between:  7, 11, 15

The first differences are 7, 11, 15, and the second differences are 4.

Since half of 4 is 2, then the first term will be 2n^2.

Subtracting 2n² from the sequence gives 2, 3, 4, 5 which has nth term n + 1.

Therefore the final answer is 2n² + n + 1

Answer Link

Otras preguntas

There are 53 students on the school basketball team. the number of 8th graders is 15 fewer than 3 times the number of 7th graders. how many 7th graders are ther
What cultures contributed to Greco-Roman civilization
If the movement of people, food, and manufactured goods can have such a negative impact on public health, should steps be taken to reduce these flows? What othe
what is the silent letter in the word poignant​
Design or name any methods of internal controls you think could prevent or detect the unethical behavior in the future.
Identify the type of role for each example. initiator-contributer -- help-seeker -- follower -- opinion seeker -- observer and commentator --
solve for w 14= -7/8w , show your work
Which sentence describes a poenis meter?
As a point moves in the positive x-direction along the line graphed, what is the rate of change of y with respect to x? A.4/3 B.3/4 C.-4/3 D.-3/4
What does it mean to be inspired by something? Why do you thinkans are often inspired by ther works of art