rookie0181 rookie0181

23-08-2018
Mathematics

contestada

The sum of an 84 number series is -7980 what is the sum of the first and last the numbers

Respuesta :

Shaswat221005 Shaswat221005

23-08-2018

Since, it is not mentioned which kind of series is it, I am assuming it to be an A.P. and will solve for the Same:
Sum = Number of terms (First Term+Last Term)/2
First Term+Last Term= -7980*2/84= -190

Answer Link

Otras preguntas

Scientists continue to debate the relationship between two Homo fossil finds: KNM-ER 1470, named H. rudolfensis by some, and KNM-ER 1813, generally considered t

Here in 2019, we will sometimes casually refer to people as being a “Renaissance Man” if they are someone who has acquired profound knowledge or proficiency in

Super Turbo Mega Double Double Extra Credit: The Earth’s total diameter is 12700 kilometers, with the solidified, ocean-covered crust that is at its thickest 35

The driver of a car going 96.0 km/h suddenly sees the lights of a barrier 39.0 m ahead. It takes the driver 0.75 s to apply the brakes, and the average accelera

What religion did constantine recognize as a legal religion

Consecutive integers differ by

A car travels forward with constant velocity. It goes over a small stone, which gets stuck in the groove of a tire. The initial acceleration of the stone, as it

Dense irregular connective tissue without a synovial cavity would be found connecting the bones involved in which type of joint? A. fibrous B. cartilaginous C.

Suppose the real interest rate is 4% and expected inflation is 1% . What is the nominal interest rate? nominal interest rate: % All else equal, if inflation dec

George receives a great money-saving credit card offer in the mail, complete with a rewards program. He reads on to find that the one dollar for every mile spen