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 :

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

PLZ HELP NO WRONG ANSWERS

what do I draw lol someone please help

What is the slope between the two points? (6,8 ) and (-3, 8 )

what is the greatest common factor of 30x² and 24x?

Find the y-intercept and the slope of the line. 4 y=-3 Open Undefined y-intercept: - : Х $ slope: -3

Please help and if u want to do this ixl msg me

A 31 kg object is experiencing a net force of 25 N while traveling in a circle of radius 25m. What is its velocity?

What keeps earth's temperature at the proper level for life?

The first black president in America

A company makes cars at two factories. Some of the cars need repairs in the first year and some do not. This two-way frequency table shows the proportion of car