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

Plz help I don’t understand
If you were to solve this inequality, do you need to flip the Inequality symbol?
- Evaluate the following expression 22 - 53 +3
Meet your requirements or that its operation will be uninterrupted or error free. Neither McGraw-Hill nor its licensors shall be liable to you or anyone else fo
Como la iglesia promueve la dignidad de la mujer enfoque Cristiano
True or false. My father has a job in agriculture, he owns and operantes his own farm.
Pete has 5 marbles . Jay has a number of marbles that is two more than 5 . How many marbles does jay have?
what is 8 times 7..................​
Give reasons why mind-mapping software is important to project development.
What other Latin American country would goods transported overland most likely go through to reach California from South America?