Answer:
$351,000
Step-by-step explanation:
Your welcome
1800x6.5x30
Answer:
B. 182 dollars
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
23
Answer:
bc it is out instead of in
Answer:

Step-by-step explanation:
The amount of the isotope after t seconds is given by the following exponential equation:

In which Q(0) is the initial amount and r is the decay rate.
A sample of beryllium-11 was first measured to have 800 atoms.
This means that 
The half-life of the isotope beryllium-11 is 14 seconds.
This means that 
We use this to find r.







So

