Answer:
(B)
Step-by-step explanation:
Given the sequence: 3, 6, 9, 12, 15, 18, ...
6=3+3
9=6+3
12=9+3
If we continue in like manner, we notice that the nth term (
) is an addition of 3 to the previous term (
).
Therefore (for n>1), the recursive formula which defines the sequence is:
The correct option is B
Answer:
t(n)= 0.2 * 2ⁿ
Step-by-step explanation:
Thickness= 0.2 millimeters
paper = 1
n= number of folds
The exponential function will be given by
t(n)= 0.2 * 2ⁿ
so if there's a single fold
t(1)= 0.2 * 2¹
t(1)= 0.4 mm
Now for 2 folds the thickness will be
t(2) = 0.2 *2 ²
t(2)= 0.2 *4
t(2) = 0.8mm
The exponential that represents this scenario is
t(n)= 0.2 * 2ⁿ
And for 3 folds the thickness will be
t(3) = 0.2 *2 ³
t(3)= 0.2 *8
t(3) = 1.6 mm
As a fraction the answer would be 5/16
