Kaelsdyane Kaelsdyane

03-02-2020
Mathematics

contestada

If the 1st and 10th terms of geometric sequence are 4 and 100, find the nth term of the sequence

Respuesta :

beritogwu beritogwu

03-02-2020

a = 4 first term, r = ?, T10 = 100.

Tn = ar^n - 1 formula for g.p

T10 = 4r^ 10 - 1

100 = 4r^9

Divide both side by 4

100/4 = 4/4r^9

25 = r^9 take the 9th root of both side

9√25 = 9√r^9

r = 9√25

To find the nth term

Since Tn = ar^n - 1

Answer Link

Otras preguntas

two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an

A child is standing across the street from his apartment . His mother is on their balcony . The angle of elevation between the child's eyes and his mothers eyes

A child is standing across the street from his apartment . His mother is on their balcony . The angle of elevation between the child's eyes and his mothers eyes

Rewrite the function c(x) =9(x+3) using the distributive property

in what ways is climate controlled by the sun and the water cycle ?

.is a pot holder a conductor or a insulator

A child is standing across the street from his apartment . His mother is on their balcony . The angle of elevation between the child's eyes and his mothers eyes

What two major processes are involved in the oxygen cycle?

You have a cylinder with a diameter of 15 inches and a height of 12 inches. What is the volume of the largest sphere thg will fit inside it? If you can will you

.is a pot holder a conductor or a insulator