A half-life of the isotope is 15 days and at start its mass is 32 g.
A table:
t: m:
0 32 g
15 16 g
30 8 g
45 4 g
60 2 g
75 1 g
In the first column is used an arithmetic sequence ( a 1 = 0, d = 15 ).
In the second column is used a geometric sequence ( a 1 = 32, r = 1/2 )
Answer:
i think it is many but i am not sure
Step-by-step explanation:
Any number to the power of 
is itself. So, 
.
Here are some more examples:
Yo sup??
2x-6>12
2x>18
x>9
therefore solution set is
x belongs to (9,infinity)
Hope this helps
