altin89 altin89

09-05-2021
Mathematics

contestada

What is a formula for the nth term of the given sequence?
20,50, 125...

Respuesta :

altavistard altavistard

09-05-2021

Answer:

a(n) = 20*2.5^(n - 1)

Step-by-step explanation:

Note that 50 is 2.5 times 20, and that 125 is 2.5 times 50. Thus the common factor is 2.5. The formula for the nth term is

a(n) = a(1)*r^(n - 1) => a(n) = 20*2.5^(n - 1)

Answer Link

Otras preguntas

As a wave approaches the shoreline and enters shallower water, energy and water move forward causing the water to rise and cascade down from the wave crest as a

The expression (x-6)^2 is equivalent to

In a buffer solution made of acetic acid and sodium acetate, if a small amount of acid is added, the added acid will react with whome?

Please help solve for the median !!

Find an equation of the line with x-intercept 8 and y-intercept 4

A researcher at the University of Washington medical school believes that energy drink consumption may increase heart rate. Suppose it is known that heart rate

I have 31 stamps total. I have 4 more 1-cent stamps than 8-cent stamps and twice as many one cent stamps as 12 cent stamps. If my stamps are worth $1.78 altoget

0. A submarine was at sea level and then dove 752 ft. It then rose at a rate of 12 ft. per minute. What was the depth of the submarine after 8 minutes? Also idk

TB MC Qu. 6-62 Gayne Corporation's contribution margin ratio is ... Gayne Corporation's contribution margin ratio is 18% and its fixed monthly expenses are $51,

Read and choose the option that answers the question. ¡Buenos días! Me llamo Carlos Manuel Rivera. Todos los días me despierto a las siete en punto de la mañana