Sikephusamkelo Sikephusamkelo
  • 21-05-2022
  • Mathematics
contestada

512=-4(-2)^n-1 find n in geometric sequence

Respuesta :

KimfromMissSaigon
KimfromMissSaigon KimfromMissSaigon
  • 21-05-2022

Answer:

n = 8

Step-by-step explanation:

512/-4 = -128

-2^? equals -128? Has to be odd since it's negative

-2^1 = -2

-2^3 = -8

-2^5 = -32

-2^7 = -128

But it's -2^n-1 = -128 so you have to add 1

7+1 = 8

So n=8

Answer Link
alfredlim29448 alfredlim29448
  • 21-05-2022

Answer:

n = 8

Step-by-step explanation:

Rearrange the equation to find n:

512/-4 = [tex](-2)^{n-1}[/tex]

-128 = [tex](-2)^{n-1}[/tex]

[tex](-2)^{7}[/tex] = -128

So, n-1 = 7

n = 8

Answer Link

Otras preguntas

What channel intermediary does not take title to products, but instead brings a seller and buyer together?.
Pls help me in this question below
How was Huey Long able to acquire so much power in Louisiana's government?
[tex] \rm \int_{0}^{ \pi } \cos( \cot(x) - \tan(x)) \: dx \\ [/tex]​
Are there exceptions to the rule that a defendant has a right to counsel at a lineup
A line passes through the origin, and is perpendicular to the line y = –2x + 6. Find the equation of the line.
Why is a very small fraction (0.001%) of the water found in the atmosphere?
What that determines if a cell is eukaryotic. *
Simplify the following expression
who is the president of zambia​