kyleescott6148 kyleescott6148

02-01-2018
Mathematics

contestada

What is sn for the arithmetic series with a1=3 an=-38 and n=8?

Respuesta :

anchitthawi anchitthawi

02-01-2018

Sn = n/2 (a1+an)
= 8/2 (3-38)
= 4 (-35)
= -140

Answer Link

Otras preguntas

Word problem issues. Problem: There is some sunken treasure and Blackbeard wants it, yet Jack Coostoe has sent out two ships (one is a decoy) to get the treasur

negative 38 divided by negative 2?

Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 5 salamanders, 3 crayfish, and 12 minnows in her lab.

What is unsettling to kennedy about khrushchev's public announcement??

El correo electrónico___para enviar información rapidamente A: Sirve B:sirvo C: servimos D:sirves

how to say ,, what do you want to say;; in spanish

Riley yelled, "Don't bother me, and you should stay where you are!" Which of the following corrects the inappropriate shift in mood in the sentence above?

A hemisphere has an area of 256 pi cm^2. What is its volume?

put each pair of sentences in order. elena ve una mesa libre . elena llega al cafe

Ron’s income is $50,000 and mary’s income is $150,000. both pay 15% of their income in taxes. which tax structure is this? regressive proportional progressive d