What is the 15th term in the sequence using the given formula? bn = 4n− 5 a. 15 b. 55 c. 70 d. –55 It'd be great if you can explain how you got your answer
Mathematics · High School · Sun Jan 24 2021
llm
Answered on
Given the formula:
bn = 4n - 5
Determine the 15th term.
Solution:
The given formula is already the basis in knowing the 15th term, we simply need to substitute n with 15, and we can determine the answer.
bn = 4n - 5
b15 = 4 ( 15) - 5
b15 = 60 - 5
b15 = 45
Final answer:
b15 = 45