47.7k views
5 votes
find the common ratio r for the geometric sequence and use r to find the next three terms 5,15,45,135

1 Answer

1 vote

Answer: 405


Explanation:

ratio r for the geometric sequence: 5, 15, 45, 135

r is a radios of a circle,

d is the Diameter

r1=5. r2=15, r3=45, r4=135, r5=?

2*r=d

so:

d1=10, d2=30, d3=90, d4= 270

now following the sequence:

r1+d1=r2 5+10=15

r2+d2=r3 15+30=45

r3+d3=r4 45+90=135

r4+d4=r5 therefore 135 + (135*2) = 135+270=405

User Eric Milas
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories