miko4kia0sonvaleyro miko4kia0sonvaleyro

24-05-2016
Mathematics

Answered

What is the sum of the first 27 terms of the following sequence? 1, 5, 9, 13, . . .

A1,431
B1,571
C2,862
D2,943

Verified Answer :

Anonymous Anonymous

26-05-2016

Sn = (a1+an) n / 2
an = a1+d(n-1)

d = 5-1 = 4
a27 = a1+d(27-1) = 1 + 4(27-1) = 105
S27 = (1+105)27/2 = 1431

Answer Link

Related Questions

a can of beans has surface area 310 cmsquared2 its height is 14 cm what is the radius of the circular top

Your friend of mass 150kg can just barely float in fresh water Calculate her approximate volume Express your answer to two significant figures and include the a

10cm 2years what is the unit rate as height per year

If you have a 5 letters ABCDE and you can put them in any order how many ways can you place them

A football stadium holds 52000 fans A college student is doing research and determines that on any given game day the home team has five times as many fans as t

Tell weather each equation has one zero or infinitely many solutions 2x 2 1 x x 3

The original remains of ancient animals such as sabertoothed cats have been perserved in

The Petition of Right forbids the mandatory quartering of troops in private homes this is part of the US Bill of Rights in this amendment

Do alto de um farol cuja altura é de 20 m avista se um navio sob ângulo de depressão de 30 A que distância aproximadamente o navio se acha do farol

If I had 2 watermelons and 4 grapes How many cherries do I have