kaciamccray6 kaciamccray6
  • 25-01-2021
  • Mathematics
contestada

A(n+1)=A(n)+4 for n21 and A(1)=-6*
Helllllp

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 25-01-2021

9514 1404 393

Answer:

  74

Step-by-step explanation:

The recursive definition is for an arithmetic sequence with a first term of -6 and a common difference of 4.

The general term of such a sequence is ...

  a(n) = a(1) +d(n -1)

This sequence is ...

  a(n) = -6 +4(n -1) = 4n -10

Then for n = 21, the term is ...

  a(21) = 4(21) -10 = 84 -10

  a(21) = 74

Answer Link

Otras preguntas

What historical reference point(s) would you use to describe the state of the world today? Why?
i need help n njnkjjknknknknjnjnkn
Volunteering at an animal shelter is a great way to demonstrate your passion for helping others develop additional computer skills earn money to pay for coll
In physical weathering, how are ice and plant roots similar? Both break open rocks by expanding in a crack. Both cause abrasion and slowly break down rocks.
A teacher puts five packages of craft paper into a cabinet each package has 80 sheets of paper what is the total number of sheets of craft paper that the teache
(BRAINLIEST AND A LOT OF POINTS PLS HELPPPPPPPPPPPPPP_) 19 ÷ 2
How did you get the answer.
how do I do this question?​
Plssss what is the answer
another retake !! help it’s due today