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

When Egypt made cotton it's biggest crop what major risk did it take
Rachel was an 85 average after four test. what does she need to earn on the next test if she wants to raise her average to exactly 88?
Which Byzantine emperor is famous for codifying Roman laws? Methodius Justinian Leo III Theodophilus
What is the length of segment AE?
Why has China been more successful than other countries in curbing its growth?
The phenomenon of _____________ is defined as a dull or drowsy condition that can occur because of the concentration needed while driving long distances. veloci
Which u.s. supreme court case found that a woman's right to have an abortion is protected by the implied constitutional right to privacy?
How should american policy makers err in liberty v equality when there two american principles collide?
Replace ? with a whole number to make the statements true. a. 20 ÷ 4 ? means ? × 4 = 20
What percentage of the elderly has inadequate nutrition and even suffers from hunger in the u.s.?