if the first term of the geometric sequence is 28 and the common ratio is 1/2 what is the seventh term?
Home
/
2 what is the seventh term?
if the first term of the geometric sequence is 28 and the common ratio is 1/2 what is the seventh term?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
the 7th term is 7/16
Step-by-step explanation:
an=a1r^n-1
n=7 a1=28 r=1/2
a7=(28)(1/2)^7-1
=28(1/2)^6
1/2⁶=1/2×1/2×1/2×1/2×1/2×1/2=1/64
a7=28(1/64)
a7=7/16