Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

774,944 users

Rules for Arithmetic and Geometric Sequences help?

0 votes

For each problem show all work leading to your answer and write the answer in simplest form. 
Use Rules to Determine Sequences 

1. Use the rule t^n=-3n+55  to find the first five terms in the arithmetic sequence.

2.Use the rule  t^n= 5(2)^n-1 to find the first five terms in the geometric sequence​

image

 

asked Oct 30, 2015 in ALGEBRA 1 by anonymous

2 Answers

0 votes

(1)

 term of arithmetic sequence is .

Find the first five terms in the arithmetic sequence.

Substitute image in   term to find the first five terms.

image

image

image

image

image.

First five terms of the arithmetic sequence are 52, 49, 46, 43, 40.

answered Oct 30, 2015 by cameron Mentor
edited Oct 30, 2015 by cameron
0 votes

(2)

term of geometric sequence​ is image.

Find the first five terms in the geometric sequence​.

Substitute in  term to find the first five terms.

image

image

image

image

image

First five terms of the geometric sequence​ are 5, 10, 20, 40, 80.

answered Oct 30, 2015 by cameron Mentor

Related questions

asked Jul 23, 2014 in PRECALCULUS by anonymous
...