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

which lists all of the y- intercepts of the graphed function?

The use of ladybugs and praying mantises to consume insect pests in gardens is an example of

Question 3(Multiple Choice Worth 4 points) (08.05) Jemma wants to solve the following system using the elimination method: y = x − 6 y = 6x − 19 What numb

Help me plzzz, I’m kinda bad at math so it would be really helpful type it here

What could explain why a decrease in taxes could lead to a less-than-proportionate increase in output? A. Consumers may choose to save much of the tax cut in

In a nonpolar covalent bond, protons are shared equally by two atoms. electrons are shared equally by two atoms. electrons are shared unequally by two atoms. pr

how will you connect three resistors of 2 ohm centrioles and 5 ohms respectively so as obtain of the result and the resistance of the 2.5 ohms draw the diagram

A regular polygon is defined to be a(n) _____ polygon with congruent sides and congruent angles

Which of these lines contains imagery that appeals to hearing? And the echoes jump, and tinkle, and swell We've none of us very much chance at a leaf.

PLEASE HELP!!!!! NEED HELP FAST! Which of the following themes is NOT contained in "The Necklace"? A) Appearances are deceiving B) Hard work Shapes a person's