Question

can you please check if i got this right also help me with one question as soon as possible pleaasee

Answer 1

4. Use the following arithmetic sequence and the formula to answer the questions below.
123, 116, 109, 102, 95, ...
Part I: Find the value of each of the following:

a1 = _123______, a2 = __116_____, and d = ___ a2-a1 = 116-123 = -7 ____. (3 points)
Part II: Find the explicit formula. Show your work.


an = a1 + d(n-1) = 123 - 7(n-1) = 123 -7n + 7 = 130 - 7n
a100 = 130 - 7*100 = 130 - 700 = -570






Part III: Use the explicit formula you found in Part II to find the value of the 100th term in the sequence, a100. Show your work.

Answer 2

i dont know how to do part 3

Answer 3

also im not sure if i got part 2 right either

Answer 4

u got the right formula, nth no = 130 - 7n. so if u want to find 100th no a100 = 130 - 7.100

Answer 5

so i got evreything right and for part 3 is 130-7.100 right

Answer 6

yes

Answer 7

thank you sooo much