jihoonsqt jihoonsqt

04-04-2021
Mathematics

contestada

Write an explicit formula for the geometric sequence below and use it to find the 9th term. 256, 64, 16, 4, . . .

Respuesta :

hahshshshwhahha hahshshshwhahha

05-04-2021

im doing this problem right now---

ok so a1=256 a2=64 a3=15 a4=4... find a9

the sequence divides by 1/4 every term

an=a1*r^n-1

an=(256)*(1/4)^n-1

replace n with 9

A9=(256)*(1/4)^9-1

A9=(256)*(1/4)^8

=(256)*(1/4)

A9=64^8

1/256 or a9= 0.00390625

Answer Link

Otras preguntas

What can you do to figure out how much you can afford when buying a car?

What are the major issues concerning privacy in the information age? do you believe the need for homeland security should overrule some of the personal privacy

What does the mother's gift of the piano reveal about her character at the end of the story? She has realized that her daughter's musical talents have increased

Which economic school of thought would explain how massive government expenditures during world war ii sharply moved the country out of the great depression?

It takes Karl 6 hours to drive 372 miles. If he drives at a constant speed during the 6 hours, what is his unit rate? At this rate, how far will Karl drive duri

2 countries that have had human rights violations regarding education.

what does vertical integration mean in simple terms?

when do you think America will enter into world war three

Neil is analyzing a quadratic function f(x) and a linear function g(x). Will they intersect?

(8.34) Which situation allows for the regulation of free speech? * When the speech is unpopular. When the speech criticizes the government. When the speech