fpuente725 fpuente725
  • 07-10-2020
  • Mathematics
contestada

Find the sum of the first 100 terms of the sequence: −30, −40, −50, −60 ,...

Respuesta :

elisha27
elisha27 elisha27
  • 08-10-2020

Answer:

D= -10

an=a+(n-1)d

a100=-30+(100-1)-10

a100=-30+99x-10

a100=-960

(n/2)(A1+an)

(100/2)(-30-960)

(50)(-990)

= -49500

Answer Link

Otras preguntas

I think I know but I really don’t want to be wrong I’m terrible at this stuff
During the Cold War, the world feared the devastation that nuclear weapons could cause. Which action was ta ken with regard to this concem?
what does pascals principle state
What std can you get from just sitting on a toilet seat?
for what form of jazz was New Orleans famousA. bebopB. swingC. cool jazzD. dixieland
what four colonies made up the middle colonies
Which mean of communication allows two way communication between the policy makers
Estimate then find the sum 127+290
What is the main purpose of scientific models
Sam nmuches on some almonds identify the food group