matthewryan15 matthewryan15
  • 04-07-2020
  • Mathematics
contestada

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

Respuesta :

gilbertazavedo72
gilbertazavedo72 gilbertazavedo72
  • 04-07-2020

Answer: 2077

There are 31 terms.

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

Answer Link

Otras preguntas

what is 0.083 repeting as a percentage?
what is zeus's home town?
land which has not yet been divided into states
Nixon had a true interest in international affairs. True False
explain why it is not possible to draw a square that is not a parallelogram.
what are the sides lengths of the rectangle perimeter 40in
What is 0.89 fraction in simplest form?
how to find the volume of L blocks?
The Pope excommunicated Fidel Castro because he was a _____ and a(n) _____. Communist; racist fascist; Muslim Communist; atheist Protestant; socialist
The height of a box is 7 inches. Its length is 6 inches more than its width. Find the length if the volume is 280 cubic inches.