Answer:
<u>The sequence is</u>
- 1, 1 + 2, 1 + 2 + 3, 1 + 2 + 3 + 4, ...
Each term is the sum of the consecutive numbers from 1 to that number.
<u>The nth term is the sum of the first n numbers:</u>
- aₙ = 1 + 2 + 3 + ... + n
- aₙ = 1/2n(1 + n) (formula for sum of the n terms of arithmetic progression with the first term of 1 and common difference of 1)
- aₙ = n(n + 1)/2
1) The number of circles in the nth pile is n(n + 1)/2
2) When n tends to infinity the number of circles tends to infinity
Answer:
3.16 inches
Step-by-step explanation:
Sqrt 10 = 3.16 inches
Answer:
m<9=130 it also equal to 180 so 130-180 makes m<4= 50
Answer:
The answer is 4 hours and 49 minutes
Step-by-step explanation:
Answer:
The last table
Step-by-step explanation:
The X must go up by 1 and the Y must increase/decrease at a constant rate.
