kyleescott6148 kyleescott6148
  • 02-01-2018
  • Mathematics
contestada

What is sn for the arithmetic series with a1=3 an=-38 and n=8?

Respuesta :

anchitthawi
anchitthawi anchitthawi
  • 02-01-2018
Sn = n/2 (a1+an)
= 8/2 (3-38)
= 4 (-35)
= -140
Answer Link

Otras preguntas

meaning of the outbreaks
How does bill of rights ensure people’s rights are protected if they are being arrested
A pole is standing in a small lake. If one-fourth of the length of the pole is in the sand at the bottom of the lake, 120 ft. are in the water, and one-fourth o
The number 28 is increased to 40. What is the percentage by which the number was increased, to the nearest tenth of a percent
(a) In a class of 40 students, 18 passed Mathematics, 19 passed Accounts, 16 passed Economics, 5 Mathematics and Accounts only, 6 Mathematics only, 9 Accounts o
what is the answer for 2 divided by 78
five ways that you would have raised money from the colonies if you were the British.
what do you think are the rights as students
write points (3,1) and (5,4) in slope intercept form and function notation
Help to solve this question