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

express ratio as a fraction in it's lowest terms.48s to 5minutes​
In the diagram below, BC is an altitude of ABD. To the nearest whole unit, what is the length of CD?
write the features of society and explain it​
sexually produced offspring are indentical to their parent . true or false ?
Question 3 Find the distance from the vertices of AABC to the corresponding vertices of the other three triangles, and enter them in the table. For AJKL you'll
(a)234.3x13 (b) 31.38 X 5 (c) 0.653X 45 (d) 21.45X 10 (e) 25.41X 18 (f) 93.2 X 47 (g) 234.2X 342 (h) 89.4X20 (a)1.1 X 3.0 (b) 2.5 X 1.4 (c) 3.4X 4.6 (d) 2.4X4
Help ask anyone have any more answers for the eye level program
1/5 + 3/4 + 1/2 please helpppo asap
Why did the United States decide to get involved in the Korean War? to colonize the Korean peninsula to continue its war against Japan to contain the spread of
Twice the difference of a number and 6