Find the sum of the arithmetic series for which a_1 = 7, n = 31, and a_n = 127.

1 answer:

8 0

Answer: 2077

There are 31 terms.

S₃₁ = 31(a₁+a₃₁)/2 = 31(7+127)/2 = 2077

You might be interested in

Katen [24]

Answer:hi n

Step-by-step explanation:

3 0

2 years ago

algol [13]

Answer: 19% of 60 is 11.4

Step-by-step explanation:

Turn 19 into a decimal — .19

times that number by 60 to get your answer! Sorry I couldn’t understand the first one

3 0

3 years ago

slava [35]

1 dozen eggs = 12 eggs

1.35 / 12 = 0.1125.....so the unit cost = $ 0.11 (11 cents) per egg

6 0

3 years ago

nika2105 [10]

Answer:

Step-by-step explanation:

8 0

3 years ago

ahrayia [7]

23.

Work:
5(6)-7
5(6)=30
30-7=23

5 0

3 years ago