whatRthose
whatRthose whatRthose
  • 26-05-2016
  • Mathematics
contestada

What is the missing term in the geometric sequence?
-6,24,?,384,-1536,...
?=
a.-204
b.-144
c.-96
d.-72

Respuesta :

windbust windbust
  • 26-05-2016
solution:
formula : an=a1(r)^n-1
n - number of term that is unknown
a1 - first term
r - second term divided by the first term
a1=-6
a2=24
a3=?
a4=384
a5=-1536

a3=-6(24÷-6)^3-1
a3=-6(-4)^2
a3=-96
therefore the 3rd term is -96 (c)

Answer Link

Otras preguntas

What is often the first sign of a stolen identity?
ofrecer parecer pertenecer conducir
Ishaan is three times as old as christopher is also 14 years older than Christopher. How old is Ishaan
Which is the most widely held ideal of the US political culture?A. belief in a limited government and protect individual liberties.B. belief in a unitary govern
I’m just not getting these right. Can someone help me?
Select the correct answer. Which sentence correctly compares temperatures? A. -5.2°F is colder than -5.7°F but warmer than -5.0°F. B. 3.2°F is warmer than
Can someone help me please giving a lot of points for these
This a simple math question but I cant seem to figure it out. The question 4×6 ÷30 × 2.4 = Y
An object with a mass of 70 kilograms is supported at a height of 8 meters above the ground, what's the potential energy of the object with respect to the groun
The library is 5 miles from the post office. How many yards is 5 miles?