# Algebra ASAP

pls pls help out
A geometric sequence begins
36, 9, 9/4, 9/16, 9/64, . . . .
(a) Find the common ratio r for this sequence.
r =

(b) Find a formula for the nth term an of the sequence.
an =

(c) Find the tenth term of the sequence.
a10 =

1. 👍 0
2. 👎 0
3. 👁 645
1. find r by dividing any term by the previous term: r = 9/36 = 1/4

So, Tn = 36*(1/4)^(n-1) = 144/4^n

T10 = 144/4^10

This was pretty straightforward. Looks like you need to review the topic.

1. 👍 0
2. 👎 1

## Similar Questions

1. ### Algebra

Determine whether each sequence is arithmetic or geometric. Find the next three terms. 14, 19, 24, 29, . . . A.geometric, 34, 39, 44 B.arithmetic, 32, 36, 41 C.arithmetic, 34, 39, 44 D.The sequence is neither geometric nor

2. ### math

Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 *** The sequence is neither geometric

3. ### algebra

1. The geometric mean between the first two terms in a geometric sequence is 32. If the third term is 4, find the first term. 2. Insert a geometric mean between k and 1/k. 3. If 2 and 3 are two geometric means between m and n,

4. ### Chemistry :'(

(d) Which of the following sets of quantum numbers is not permitted? Select all that apply. 2,1,1,-1/2 1,1,0,-1/2 2,-1,1,-1/2 3,2,1,1/2 Pls pls pls help me :( x

1. ### 7th Grade Math for Steve.. or Ms. Sue

Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 ** The sequence is neither geometric nor

2. ### Can someone help me?!

The 1st, 5th and 13th terms of an arithmetic sequence are the first three terms of a geometric sequence with a common ratio 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the

3. ### pre-calculus urgent

Please help me here as well to clarify more my understanding. Let a1, a2, a3, . . . be a geometric sequence with initial term a and common ratio r. Show that a1^2, a2^2, a3^2, . . . is also a geometric sequence by finding its

4. ### math

The 1st,5th,13th term of an arithmetic sequence are the first 3 terms of geometric sequence with a common ratio of 2. If the 21st term of the arithmetic sequence is 72, calculate the sum of the first 10 terms of the geometric

1. ### Math

1. What is the tenth term of the geometric sequence whose first term (a1) is 16 and the common ratio (r) is –½? 2. Given the terms a10 = 3 / 512 and a15 = 3 / 16384 of a geometric sequence, find the exact value of the first

2. ### Pre-Calc/Trig...

If An is defined as a geometric sequence, is the sequence 1/an also a geometric sequence? Explain your reasoning

3. ### HISTORY

HELP ASAP PLS!! 1. What was the fate of the Mission San Francisco De Las Tejas? (A) It was abandoned and burned down by the priests and soldiers that live there. (B) It was abandoned, but left in good shape so that it could be

4. ### Mathematics

Hello guys im taking the triand theory and fractions 6th grade connexus test does anyone know the answers if so can you guys pls pls help me ?