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

which ingredient would a company that makes super-sour candy most likely use in large quantities?

which is a quadratic function? f(x) = 2x x 3 f(x) = 0x^2 – 4x 7 f(x) = 5x^2 – 4x 5 f(x) = 3x^3 2x 2

what is the false cognate of "fábrica." fabulous fable facade fabric

find the measure of Angle 5. measure of angle 7 = 2x+15 measure of angle 8 = 3x

the probability of selecting a consonant from the letters of the alphabet is 21/26

y = –3x 6 y = 9 what is the solution to the system of equations? (–21, 9) (9, –21) (–1, 9) (9, –1)

Identify the subject: Take the elevator to the third floor and walk to room 102.

Points have the following physical properties: depth height thickness none (I just want the Answers)

The total temperature measured by 4 thermometers was −16 degrees Fahrenheit. What was the average temperature measured by the 4 thermometers? A: −12 degrees Fah

how fast would you have to drive to go 183 miles in 3 hours ?