ElenaHagan ElenaHagan

13-05-2020
Mathematics

contestada

Find the common ratio of the geometric sequence: 1,−3,9,−27,81,…
A. 3
B. −13
C. -3
D. 13

Respuesta :

surjithayer10 surjithayer10

13-05-2020

Answer:

-3

Step-by-step explanation:

common ratio=a2/a1=-3/1=-3

2.

a1=3

a5=48

an=a1 r^(n-1)

48=3r^(5-1)

r^4=48/3=16=2^4

r=2

Answer Link

23rschwab 23rschwab

13-05-2020

Answer:

-3

Step-by-step explanation:

Answer Link

Otras preguntas

write an expression in simplest form for the area of the rectangle the rectangle is 3ft tall and (c + 4) ft wide and make sure you simplify

what factor is paired with 5 to give 45?

12 less than one-eleventh of some number, w"

Why is the San Francisco de Solano on the Califorana coast?

facts about eric the red the viking

what Percentage of algae uses photosynthesis to make their own food

A concession stand sells hamburgers. The revenue from hamburgers is (30x + 45) dollars. The price of a hamburger is $5. Write an expression that represents the

Sue took her collection of nickels and dimes to deposit it in the bank. She has five fewer nickels than dimes. Her total deposit was $66.80 How many dimes did

animals with nerve net have what

- A scientist is determining the age of a rock by comparing their position to other rock layers. By doing this, the scientist is determining ___. - A)the dat