tlperez1230
tlperez1230 tlperez1230
  • 01-04-2019
  • Mathematics
contestada

Two geometric means are inserted between 4 and 864 so the four numbers form a geometric sequence. What are these two numbers ?

Respuesta :

jcherry99
jcherry99 jcherry99
  • 04-04-2019

Answer:

24 and 144

Step-by-step explanation:

a = 4

t4 = 864

864 = 4*r^(4 - 1) divide by 4

216 = r^3            Take the cube root of 216

6 = r

Note you can find the cube root of any number by using your calculator.

  • 216
  • y^x or x^y or ^
  • 0.333333333333
  • =
  • 5.99999999 which rounded is 6

t2 = a * r^(2 - 1)

t2 = 4 * 6^1

t2 = 24

=================

t3 = a*r^(3 -1)

t3 = 4 * 6^2

t3 = 4 * 36

t3 = 144

Answer

24 and 144

Answer Link

Otras preguntas

Help me with this problem please
6. Which two expressions are are equivalent? A. 5x -5 and 51x-5) B. 5(x-5) and 5x – 25 C. 5x - 1 and 5x -5) D. 5xix - 1) and 5x -5 HELPPPLP
whats the greatest common factor of 48,112,80
The demand for a product is inelastic with respect to price if:.
Alex has 100 balloons. He gives an equal number of the balloons to each of his 5 friends.
F(x)= -2x - 5 for x = 3
Ashley bought 3 bottles of water and a large pizza. The pizza cost is $10.99 and the total bill was $15.49Write an equation to represent the situation.​
Recommend Three life skills that can assist a Grade 12 school leaver to adapt to the world of work in 2023
please help asap will give 20 pts, brain, 5 star and thanks [must include sbs]
Gino is starring in the school play, it opens next week. Which revision best corrects the sentence? Gino is starring in the school play it opens next week. Gino