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

3.) If I have 45L of helium in a balloon at 300K and increase the temperature of the balloon to 350K, what will the new volume of the balloon be? V1: T1: V2: T2

Why did Jefferson want to buy the Louisiana Territory? b He understood the importance of gaining control of the port of New Orleans for shipping and trade. He n

The lcm of 4,5 and p is 60.Find the possible values of p

Find all real zeros: h(a) = 4a ^ 4 - 4a ^ 3 - 81a ^ 2 + a + 20

A box of fruit has four times more peaches than plums. It also has 3 less nectarines than plums. If the box contains 21 pieces of fruit, then how many are there

Which of the following is not a potential hazard encountered in the biology laboratory? biohazards electrical hazards fire hazards physical hazards

Which equation describes the function shown? Group of answer choices y = x + 4 y = x - 4 y = x/4 y = 4x

for my brother 2x-3+6x=21 X= what

I'm learning Russian and I have a question how do you tell if a word is masculine, feminine, or neutral?

Jordan used the distributive property to write an expression that is equivalent to 6c – 48. 6c - 48 is equivalent to 6(c - 48) Is Jordan’s work correct? Choose