Answer: 30 something?
Step-by-step explanation:
Answer: F(x) = 5x^2 + 10x
Your answer should be 6.4 if you attempt to solve this. I hope this helps your question!
Answer:
a₅=27.
Step-by-step explanation:
1) according to the condition the given subsequence is arithmetic sequence. It means, the a₁=7 and d=5, then
2) a₅=a₁+4*d; => a₅=7+4*5=27.
