nikhilpun36 nikhilpun36
  • 02-06-2021
  • Business
contestada

the sum of a and 3a is​

Respuesta :

mahraalirashid mahraalirashid
  • 02-06-2021

Answer:

Given,

3a,a,_a.......a terms

Sn=n/2[2(a)+(n-1)d]

Sa=a/2(6a-2a+1)

Sa=a/2(2(2a+1)

Sa=a(2a+1)

Sa=2a^2+a

Explanation:

Answer Link

Otras preguntas

The cost of 9 small boxes of mixed organic vegetables is $180. The cost of 1 small box of mixed organic vegetables is $ . The cost of 20 small boxes of mixed or
example of irony in Edgar Allen Poe's The Raven
explaon how you have good leadership in school.
Read the excerpt from Act I, scene i of Romeo and Juliet. So early walking did I see your son: Towards him I made; but he was ware of me, 110 And stole into th
why were the people in the united states interested in events in Texas in 1836
-144 is -1 x 2a x 3b what is the sum of a+b?
Finding coordinates on a curve given a line parallel to the tangent of the curve. We just started calculus a couple days ago and I'm confused about this questi
If the equation of a parabola is y = 9(x - 2)2 + v, and its vertex is (2, -4), what is the value of v in the equation?
For f(x) =3x + 2, find f(x) when x=4 and when x= -1
Venita is factoring the expression 32ab-8b. She determines the GCF and writes the factored expression as 8b(4a-0). Which best describes Venita’s error? PLZ HELP