# Algebra II

1.
Which represents the first two terms of the sequence:
a_1 = 2 and a_n = -2(a_n-1)^2

option a. -8, -128
option b. 16, 1024
option c. -2, 16
option d. 2, -8

2.
Which is the seventh term in the sequence:
a_n = -1/125 * 5^n-1

option a. -125
option b. -625
option c. -25
option d. -5

3.
Which is the 10th term in the sequence:
-62, -47, -32, -17, -2, ...

option a. 58
option b. 88
option c. 73
option d. 12

4.
Which is the 14th term of the sequence:
1/81, 1/27, 1/9, 1/3, 1,...

option a. 2187
option b. 6561
option c. 19,683
option d. 59,049

1. #1,2 - just plug in a value for n

#3 Tn = -62 + 15(n-1) = -77+15n
#4 Tn = 1/243 * 3^n

posted by Steve

## Similar Questions

1. ### DISCRETE MATH

Determine whether the following is a recursive or explicit. Then, find the first four terms of the following sequence. a) a_n = 〖na〗_(n-1) where a_0 =5 b) a_n = a_(n-1) + 3a_(n-2) where a_0 = 1 and a_1 =2 c) a_n =
2. ### math

-Write the arithmetic sequence 21,13,5,-3... in the standard form: a_n= -a_n=a_1+(n-1)d--so a_n=21+(n-1)-8 *a_n=-168-8n why isnt this right?
3. ### Algebra 2

The sequence is defined by a recursion formula. Write the first four terms of the sequence: a_1=9; a_n=3a_n-1
4. ### Algebra 2

The sequence is defined by a recursion formula. Write the first four terms of the sequence; a_1=0; a_n=5a_n-1 +7
5. ### Algebra 2

The sequence is defined by a recursion formula, write the first four terms of the sequence; a_1=100; a_n=1/2a_n-1 +4
6. ### Algebra 2

The sequence is defined by a recursion formula.Write the first four terms; a_1=-5; a_n=2a_n-1 +7
7. ### Sequences

For any sequence of real numbers A = {A_1, A_2, A_3, ... }, define *A to be the sequence {A_2 - A_1, A_3 - A_2, A_4 - A_3,..}. Suppose that all of the terms of the sequence *(*A) are 1, and that A_19 = A_92 = 0. Find A_1. Help me,
8. ### 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?
9. ### Algebra

For the following sequences determine the term indicated: a_1=-2, a_n=2(a_n-1)^2,a_4 a_n=ln(e^n+2), a_5 b_0=1, b_1=2, b_n+1=2b_n-b_0
10. ### calculus

Following sequence is given. A_(n+1)=sqrt(b*a_n+c) a_1=a a,b,c>0 How do you prove it is bounded and convergent?

More Similar Questions