carlywatson87654 carlywatson87654

12-06-2021
Mathematics

contestada

Enter a recursive rule for the geometric sequence. 5, −10, 20, −40, ...
a1=
an=

Respuesta :

sqdancefan sqdancefan

12-06-2021

9514 1404 393

Answer:

a[1] = 5
a[n] = -2a[n-1]

Step-by-step explanation:

The first term is the first one on the list:

a[1] = 5

__

The ratio of terms is ...

-10/5 = -2

That is, each term is -2 times the previous one, so the recursive rule is ...

a[n] = -2·a[n-1]

Answer Link

Otras preguntas

The diagram below represents a reproductive process.Which reproductive process is represented by the diagram?

An item is regularly priced at $53. It is on sale for 35% off the regular price.

please help me with these !!

i need help pls help

5. Maria says 1, 2, 3, 4, 6, and 12 are all the factors of a number. What is the number?

Me los zapatos. O A. gusto O B. gusta O C. gustas O D. gustan

HELP ASAP!! Match the definitions and words 1. Flailing ___ 2. abiding ___ 3. Pitied ___ 4. Implacable ___ A. continuing, lasting B. placed in competition C.

The energy released by a nuclear fusion reaction is produced when A. energy is converted to mass B. mass is converted to energy C. heat is converted to temperat

Which planet would scientists like to explore 1st because it is so similar to Earth's?

Maria just put 23.38 gallons of fuel into her car. There were 1.7 gallons in the car to begin with. How much fuel is in Maria's car now?