Answer:
an = 1/4(8)^n-1
Step-by-step explanation:
Given the following in a geometric sequence, a2=2, a3=16, and a4=128.
nth term of a sequence = ar^n-1
a is the first term
r is the common ratio
r = a3/a2 = a4/a3
r = 16/2 = 128/16
r = 8
a2 = ar
2 = 8a
a = 2/8
a = 1/4
The nth term by substituting the parameters will be;
an = 1/4(8)^n-1
Answer:
You need to save $16 more dollars.
Step-by-step explanation:
If you add 16 to 34 you get 50.
Answer:
20 m^2
Step-by-step explanation:
First multiply the parallelogram part: 3 x 5 = 15
Then multiply the triangle part: (2 x 5)/2 =5
Then add: 15 + 5 = 20
Good Luck!
Ans57 , 58 , 59
Step-by-step explanation:
