math

a=6,9,12,15,18,…
Find the closed form: an=

  1. 👍 0
  2. 👎 0
  3. 👁 74
  1. looks like an arithmetic sequence,
    with a = 6, d = 3

    an = a + (n-1)d
    = 6 + 3(n-1)
    = 3n + 3

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    One light bulb in a string of lights goes out this causes all other lights in string to go out. This is example of A. Resistor B. parallel circuit C. Closed circuit***** D. Series circuit When a switch is turned from the off to

    asked by BUBBLES on March 1, 2015
  2. Math

    My Answer = **** 1. Write the inequality for the graph. (1 point) image shows closed circle 4 and up. A. x > 4 B. x underscore > 4**** C. x underscore < 4 2. Write the inequality for the graph. image shows open circle up to both

    asked by Hey! The Science Kid! on November 2, 2018
  3. algebra

    What is the closed linear form for this sequence given a1 = -15 and an + 1 = an - 8? A) an = 7 - 8n B) an = -7 + 8n C) an = -7 - 8n D) an = -15 - 8n my best answer is C

    asked by Leslie on February 28, 2017
  4. physics 2

    How much higher will mercury stand in the open arm in a J-Tube manometer, if air column in the closed arm is reduced to 4 cm, the mercury id at the same level in both open and closed arms when the air column in the closed arm is

    asked by prince on December 4, 2016
  5. science

    When all parts of a circuit are composed of conducting materials, the circuit is said to be A. parallel C. open B. shorted D. closed the answer is d. closed

    asked by nelly on April 10, 2007
  1. Chemistry

    a mixture of .0285g of H and .0141 mol of oxygen in a closed container is sparked to initiate a reaction. How many grams of H2O can form?Which reactant is in excess and how many grams remain?

    asked by Tyler on September 28, 2011
  2. Calculus

    1. Locate the absolute extrema of the function f(x)=cos(pi*x) on the closed interval [0,1/2]. 2. Determine whether Rolle's Theorem applied to the function f(x)=x^2+6x+8 on the closed interval[-4,-2]. If Rolle's Theorem can be

    asked by Cynthia on October 30, 2012
  3. Intro-Physics Help Please

    A spaceship lands on a new planet. the crew decides to measure the speed of sound in the planets atmosphere. taking a tube with a length of 50 cm, they find that one resonant frequency occurs at 2,520 Hz, and the next resonant

    asked by Kayla on December 7, 2014
  4. maths

    consider the sequence given by U1=-0.3 Un+1=Un+0.7 i)state what type of sequence this is. ii)write down the first 4 terms of the sequence. iii) find a closed form for sequnce. iv) use the closed form to find the nth term of the

    asked by cecilia on November 2, 2007
  5. Math (Series)

    Convert this series to closed form: Sn = ln(1 - 1/4) + ln(1 - 1/9) + ln(1 - 1/16) + ... + ln(1 - 1/(n + 1)^2) ----------------------------- I would guess the first step is this: e^Sn = (1 - 1/4) * (1 - 1/9) * (1 - 1/16) * ... * (1

    asked by Sean on March 18, 2009

You can view more similar questions or ask a new question.