katyadams0225 katyadams0225
  • 04-08-2017
  • Mathematics
contestada

Find a6 of the geometric sequence: a1=4 and a3=36

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 04-08-2017
geometric sequence

an=a1(r)^(n-1)
so

given
a1=4
and a3=36

36=a3=4(r)^(3-1)
36=4(r)^2
9=r^2
3=r


an=4(3)^(n-1)
a6 is
a6=4(3)^(6-1)
a6=4(3)^5
a6=4(243)
a6=972

a6=972
Answer Link

Otras preguntas

what the rational numbers equivalent to 6/9
Evaluate 14.3 + 8.2 x 30
The first light bulb had a filament made of _____.
A rectangular park is 150 yards on one side and 125 yards on the other. if Debbie walks around the park two times, how far does she walk
What is the range of {(1, 2), (3, 4), (5, 6)}?
write two integers with different signs that have a sum of -25. write two integers with the same sign that have a sum of -25
55/100 in simplest form?
To make fruit salad,Sara uses 28 ounces of pineapple,21 ounces of apples,19 ounces of bananas,and 16 ounces of mango.how many 6- ounce servings of fruit salad c
A bus slams on its breaks and goes from 30 km/hr to 15km/hr in 4 seconds. What is its acceleration?
-3/4 (-4) please provide answer and how to solve it