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

Origanal 240 pages 20% increase

ASAP.. please help it's important!!

What is the closest antonym for the world lightweight A.social B.shaggy C. Horrible D.hefty

What are the primary elements of the earths layres?

If 100 envelopes cost 70 cents, how much would 250 cost?

ASAP.. please help it's important!!

How do you write 112,300 in word form?

y+4=-2(x-1) slope intercept form

Write the equation of a line in slope-intercept form from the graph below.Write the equation of a line in slope-intercept form from the graph below.

The graph of the piecewise function f(x) is shown. What is the domain of f(x)? {x | 1 < x < 5} {x | 1 < x < 5} {y | −4 < y < 1} {y | −4 < y