Friday

January 30, 2015

January 30, 2015

Posted by **Jnr John** on Tuesday, April 16, 2013 at 11:20pm.

- Please...help me over here.,Sequence and series -
**Reiny**, Tuesday, April 16, 2013 at 11:29pmremember the terms of a geometric sequence run like this:

a ar ar^2 ar^3 ...

so we

1 , r, r^2, r^3, 81

term(5) = 81

r^4 = 81

r = ± 3

so the sequence is

1, 3, 9, 27, 81

or

1, -3, 9, -27, 81

**Answer this Question**

**Related Questions**

Math - I'm learning series and sequences (grade 11). Please check that my steps ...

Math - Geometry - Please help! Need to find the 6th and nth terms in this ...

maths - Insert three geometric means between 1 and 81.

English Comma splices and run on sentences - Question 17 5 points Save The movie...

Math *URGENT - Please give the answers and solutions for each. 1.If the second ...

arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...

arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...

Algebra - True or False 1. – 5, – 5, – 5, – 5, – 5, … is an arithmetic sequence...

Algebra 2 - would some one please check these for me 1. divide x^2-36y^2 over 5x...

SeQuEnCeS and SeRiEs: HELP PLZ! - The first three terms of the sequence -8,x,y,...