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

Choose the answer that best describes hydrostatic equilibrium. (A). when liquid such as water becomes spheroid under weightless conditions (B). when a body has
which technique cannot be used to analyze gene expression?
What is the atomic mass of Sulfur?
Which of the following is a bullet type in the <ul> tag? (a) Disc (b) Circle (c) Square (d) All of these ​
I have the answer but can someone explain how to solve this problem? Thanks!
What is the Lowest term of 9/27 True answer!
The conversion of raw data into useful information is the ....... Of compu ng School Level Computer Science - 8​
what is 3x55 divided by 8 +9 minus 15=67x8???
What do topic sentences and thesis statements have in common
Pls answer questions 1-3 with a proper answer