girltwin888 girltwin888
  • 01-04-2018
  • Mathematics
contestada

PLEASE PLEASE PLEASE HELP I NEED IT

What is the sum of the series?

PLEASE PLEASE PLEASE HELP I NEED IT What is the sum of the series class=

Respuesta :

Аноним Аноним
  • 01-04-2018
Formula :

[tex]n\left(a_1+\frac{d\left(n-1\right)}{2}\right)[/tex]

Plug in the values :

[tex]20\left(1+\frac{-3\left(20-1\right)}{2}\right) = 550 [/tex]

----------------------------------
Answer:550
----------------------------------

Answer Link

Otras preguntas

Find the midpoint of the line segment with the given endpoints (-3,1 -2,8) (-4.92,-3.3)
y = 3 ( x - 2 ) ^ 3 - 5
which of the following is not a reactant needed for photosynthesis A. sunlight B. oxygen C. carbon dioxide D. water
Give 5 examples of branches of science, then give an example of situations that apply the use of it in daily activities. Example: PHYSICS - Turning the light on
Discuss and Implement the Price Adjustment Strategies in current market. Apply each strategy with 3 examples along with picture.
At what points do the the graphs of y = 2x+1 and y= -(x-1)^2+3 intersect? O A. (-2, -6) and (2, 2) O B. (-1, -1) and (1,3) O C. (-3,5) and (2, 2) O D. (1, 3) an
How did the republican get the civil right act passed
what is it that drives people to a xenophobic mentality?
3x+3y=180 what is the answer to this problem
Pls help I’m so stuck