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

Getting into the dark web is it worth it ?

Which of the following is not a property of a base? Feels slippery to the touch Changes red litmus to blue Has a sour taste Produces OH- ions

Principal, $400 rate, 5 percent time, 1 year (A) $10 (B) $20 (C) $40 (D) $200 Please explain how you got the answer

Which of the following was not something that the leaders of Europe did at the Congress of Vienna to restore Europe to its pre-French Revolution status? A. T

Simplify 7(2.3 x 10^11) and write in scientific notation.EDIT: It's 1.61 x 10^12

The principles of art are the ways in which the elements of art are used and placed within a piece of art.

Waves in water are mechanical waves in which the particles in the medium move in a direction perpendicular to the direction of energy transport. identify anothe

When encountering a multiple choice test question that involves the use of double negatives, what is one recommended strategy that an individual can use to help

I don't know the answer please help

What is the external conflict in “To Build a Fire”? A. between human and dog B. between human and nature C. between human and human D. between hu