allymays25 allymays25

28-02-2017
Mathematics

contestada

What is the sum of the first 11 terms of the arithmetic series in which a1 = –12 and d = 5?

Respuesta :

WalkingDisaster408 WalkingDisaster408

28-02-2017

use the formula Sum= n/2(2a + (n-1)xd)
So, 11/2(2x-12 + (11-1)x5)
=57.2

Answer Link

Otras preguntas

At one time, scientists proposed a principle called the central dogma. This principle stated that in the body, a chemical substance called DNA contains informat

Marguerite starts a corporation. Her articles of incorporation specifically state that the corporation will work in the beauty products industry. Marguerite wou

A small group of employees from the marketing department of an organization get together for lunch every Friday so they can discuss various personal and profess

What is the volume of a cube that has a side length of 5 centimeters? CON 5 cm Recall the formula Cube V=53.

Chitchat wireless charged 0.30 per minute plus a monthly base fee in September Maggie used 120 minutes and her bill was $51 write and solve an equation to find

An athletic field is a 42 yd-by-84 yd rectangle, with a semicircle at each of the short sides. A running track 20 yd wide surrounds the field. If the track is

What is 39 divide by 2

Question 6> Which of these sentences is an emotional appeal?Years of research and development by ateam of optometrists have gone intodesigning the lenses.Eac

A Culturally Entrenched Pattern Of Behavior Made Up Of:____________.(1) Sacred Beliefs, (2) Emotional Feelings Accompanying The Beliefs, And (3) Overt Conduct P

A raffle has a grand prize of a European cruise valued at $15000 with a second prize of a weekend in San Diego valued at $1500. If each ticket costs $4 and 1200