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

Calculate the distance a plane flies on a 7.95-hour flight from chicago to london. assume a constant speed of 800.0 km/h.
Evaluate: 2^-2 x (13x3)-5^3
I need help on this question.
Please answer this correctly and thanks
Which lines are the best example of parallelism? Question 4 options: “Today is heavy with tomorrow--/the future was planted yesterday” “On the perfectly silent/
The diameter of a circle is 32 centimeters what is the radius, circumference, and area
Which word is used to refer to methods of communication such as newspapers, videos, photographs, and websites? A. instruments B. mediums C. vehicles D.
Choose the TRUE statement about to the square root of 165 . A) It lies between 8 and 9 on a number line. B) It lies between 11 and 12 on a number line.
How was the conflict surrounding the election of 1824 finally settled
Doughnuts are a dessert tradition enjoyed by millions of Americans everyday. A little known fact is that doughnuts have been invented at least twice. Archaeolog