salihaiszubair salihaiszubair

19-04-2022
Mathematics

contestada

The first four terms of an arithmetic sequence are 7, 14, 21, 28... Calculate the sum of the first 50 terms.

Respuesta :

saharamagar2020 saharamagar2020

19-04-2022

Step-by-step explanation:

a = 7

d = 14-7 = 7

s(50) = n/2*[a+(n-1)*d]

= 50/2*[7+(50-1)*7]

= 8750

Answer Link

Otras preguntas

write an equation of the line that passes through points (4,1) and (-2,7) PLEASE ANSWER ASAP!!!

The tone of a piece of writing indicates _____. the atmosphere the mood the author’s attitude toward the subject the author’s attitude toward the time and plac

Describe the call Darry receives from a surprise person. (Outsiders by S.E Hinton)

Breastworks are __________. earthen or rock fortifications to protect soldiers factories that manufactured military armaments protective shields for men ope

What is the answer for number 1?

What is the exact value of the expressions the square root of 180. − the square root 125. + the square root of 5.? Simplify if possible. 2 the square root of 2

Each T-shirt sells for $8, and each long-sleeve shirt sells for $11. The swim team collected $310 for the 35 shirts that were sold. How many of each type of shi

70 points All of the following were causes of world war ll except ? A : hitlers determination to acquire living space for Aryans B: Germanys annexation of Pola

Why can’t you raise 0 to a negative exponent?

(05.05 MC) After listening to the conversation in the lesson, fill in the blank with the correct noun and article. You may copy and paste the accented character