Answer:
12
Step-by-step explanation:
d=rx2
The domain for n is 
Explanation:
The arithmetic sequence is
To determine the domain of the sequence, let us consider
as
Thus, the sequence becomes,
The domain of the function is the set of all x-values for which the function is real and well defined.
Since, the function has no domain constraints or undefined points. Therefore, the domain of the function is
Thus, the domain of the arithmetic sequence
is 
Answer:
Step-by-step explanation:
10/7 x 9/8 = 90/56 = 45/28.
7/9 x 8/10 = 56/90 = 28/45
If you want to multiply these, the answer is (28*45) / 28/45) = 1.
N=9

n=9.333333333333333

that is 15 3's by the way.
The decimal point just moves to the right 1 digit.
Example:
100.000 ---> 10.000 ---> 1.000