zwhite7621 zwhite7621
  • 02-12-2019
  • Mathematics
contestada

Find the sum of the first 25 terms of the arithmetic sequence -2, 2, 6, 10, 14...

Respuesta :

nilo87
nilo87 nilo87
  • 03-12-2019

Answer:

1150

Step-by-step explanation:

a2=a1+d

d=4

sn=(n/2)(2a1+(n-1)d)

s25=(25/2)(2×(-2)+24×4)=25×46=

1150

Answer Link

Otras preguntas

Write an essay addressing the importance of responsible relationships and remaining abstinent.14 pts
Please explain and help
Find two consecutive numbersodd numbers such that thesum of thegreater numberand 5 times the smallernumber is 92. Please give detailed step by step answer​
simplify (45) - (+14)​
Which country played the biggest role at the beginning of the Atlantic slave trade? O a.) Spain b.) Holland C.) Portugal с a O d.) England Be the SUBMIT MY ANSW
In which of the following cases would the quantity 'q' decrease proportionally when the quantity 'p' is increased? a) P = 3 x q b) p-3=q c) p=3/q d) 1/p=3/q​ Pl
1.A big debate is raging in both the religious and political arenas regarding same sex marriages. Do you think that if people choose to be committed together, t
Consider the production function Y = (K)^1/2 (N)^1/2 where Y is output, K is capital, and N is the number of workers (abor) When K = 46 and N = 82, output is
f(x)=3x2+10x-25 g(x)=9x2-25 Find (f/g)(x).
4. Given that the enthalpy of reaction for a system at 298 K is -292 kJ/mol and the entropy for that system is 224 J/mol K, what's the free energy for the syste