Pixal
Pixal Pixal
  • 03-06-2020
  • Mathematics
contestada

If 5,x,y,40 are in geometrical progression, find x and y respectively.

Respuesta :

snog
snog snog
  • 03-06-2020

Answer:

x = 10, y = 20

Step-by-step explanation:

Because this is a geometric sequence, we'll call the rate of change z. Because 40 is 3 terms away from 5, we can write 5 * z * z * z = 5z³ = 40.

z³ = 8 → z = 2

Now, we simply multiply 5 by 2 to get x, which is 10, and then we multiply x by 2 to get 10 * 2 = 20 for y. Hope this helps!

Answer Link

Otras preguntas

Which is/are important aspects of human culture
Help !!!!!!Estimate the number of times your heart beats in a day?
In novels, falling action is often followed by
Please find the root of this equation thank you
Which is/are important aspects of human culture
Calculate the distance travelled by the van between 16.0s and 23.0s. Give your answer correct to 2 significant figures.
Ribbon is sold by the yard. if the cost is $2.79 per yard, how much does the ribbon cost per inch?
You are watching your favorite television program when a commercial for a new medication comes on. it states that the medication can alleviate depression: "sinc
Describe the possible effects of volunteer bias on the outcome of studies.
James thinks they could have paddled down the river in 5 days. If they had pushed their limits. How many miles per day would they have had to paddle to finish t