Math

Given the geometric sequence: 19, 17111, 1539121, ⋯

Find an explicit formula for an, where the first term is a1=19.
an=

Find a6=

  1. 👍 0
  2. 👎 0
  3. 👁 64
  1. The sequence is not geometric!

    17111/19 = 900.5789
    1539121/17111 = 89.9492

    the ratio is not constant. Fix it, find the common ratio r, and then

    a6 = 19*r^5

    1. 👍 0
    2. 👎 0
    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Pre-calculus

    State whether the sequence is arithmetic or geometric, write a recursive and explicit formula and find the 10th term. 81, -27, 9, -3, 1... Sequence Type: geometric Recursive: _______ Explicit: ______ 10th Term: -1/243

    asked by HELP on April 28, 2019
  2. math Help plz

    1.Given a geometric sequence with a_1=6 and r=2/3, write an explicit formula for a_n, the nth term of the sequence. 2.A geometric sequence has a_4=4 and a_5=7. What is a?

    asked by Kenneth on November 30, 2015
  3. Algebra

    Is this sequence 10, 15, 20, 25, 30 an arithmetic or geometric sequence? Then find the explicit formula and recursive formula for the given sequence.

    asked by Steph on May 17, 2016
  4. MATH

    Write the explicit formula for the geometric sequence. 8,6,4 1/2, 3 3/8 What is the explicit formula for the given geometric​ sequence? An=.................

    asked by Samy on February 3, 2016
  5. 9th grade algebra (sequences)

    Can you check my homework please? Given the following representations, tell whether it's arithmetic/geometric, find the difference/ratio, find the explicit formula, find the recursive formula, and the given term. (This whole

    asked by Alexis on January 16, 2017
  6. algebra 1

    how do you find the area or geometric sequence of the explicit formula

    asked by Dakota Rodriguez on April 10, 2015
  7. math30

    Sequences 1)A sequence has a first term of 24 and every other term is one half of the previous term. a)Write the first four terms of the sequence. b)Find a recursive formula that defines this sequence. c)Find an explicit formula

    asked by alejandro on August 8, 2012
  8. Pre-Calc/Trig...

    Given a geometric sequence with a1 = 6 and r = 2/3, write an explicit formula for An, the nth term of the sequence.

    asked by Anonymous on December 3, 2014
  9. algebra

    Could someone check my work; 1. Generate the first five terms in the sequence using the explicit formula. yn = –5n – 5 –30, –25, –20, –15, –10 30, 25, 20, 15, 10 –10, –15, –20, –25, –30(my answer) 10, 15,

    asked by lee on February 3, 2013
  10. Math

    can someone please make me create a geometric sequence up to 5 terms? so that I can find the explicit formula for the nth term

    asked by Blank on February 24, 2019

More Similar Questions