ay2cheskelsebea ay2cheskelsebea

08-11-2016
Mathematics

contestada

What is the sum of the arithmetic sequence 8,14,20... , if there are 22 terms? answers to choose from.

a)1,558
b)1,560
c)1,562
d)1,564

Respuesta :

scme1702 scme1702

12-11-2016

The common difference in this sequence is 6
The sum of n terms of an arithmetic sequence is given by:
S = n/2 [2a₁ + (n - 1)d]
S = 22/2 [2(8) + (22 - 1)(6)]
S = 1562
The answer is C

Answer Link

Otras preguntas

Read the following passage from "The Most Dangerous Game".The general made one of his deepest bows. “I see,” he said. “Splendid! One of us is to furnish a repas

What would happen to plant roots when we grow plants in space?

what does it mean when a number is in () will mark brainliest

4. A cylinder with a piston originally contains 5.0 L of He gas at a temperature of 310 K. When the gas is cooled the piston moves and the new volume is 2.4 L.

Imagery in literary nonfiction refers to

What is the solution to the system of equations? {x=5 y=2x−1} (5, 9) (9, 5) (5, 11) (11, 5)

Which description is paired with it's correct expression?

A pole vaulter takes 1.3 seconds to fall from peak height to the landing mat. What is his vertical velocity at contact with the mat?

You work for a marketing firm that has just landed a contract with Run-of-the-Mills to help them promote three of their products: guppy gummies, flopsicles, and

Help me on this math question

good job