In simplified form, write a formula for the nth term of the arithmetic sequence that has terms a subscript 4=31 and a subscript 8 =47.
Added by Sonya H.
Step 1
Given a subscript 4 = 31 and a subscript 8 = 47, we can use the formula for the nth term of an arithmetic sequence to find the common difference: a subscript 8 = a subscript 4 + 4d 47 = 31 + 4d 16 = 4d d = 4 Show more…
Show all steps
Close
Your feedback will help us improve your experience
Piyush Kumar Gupta and 86 other Precalculus educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Write a formula for the general term (the nth term) of the geometric sequence: 8, 24, 72, 216, 648.
Piyush Kumar G.
Write a formula for the general term, the nth term, of the arithmetic sequence: -4, 2, 8, 14, . . . .
Ahmet Y.
Find a formula for the nth term of the sequence whose first few terms are given. $$-\frac{1}{8},-\frac{1}{2},-2,-8,-32, \dots$$
Discrete Algebra
Sequences and Sums
Recommended Textbooks
Precalculus with Limits
Precalculus
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD