The answer to the question is C
always put the 1st number you would like to turn to scientific notation
so the 1st number here is 3
then you turn 8 into a decimal because it is the only other number that isnt 0 and then it is 3.8
you then count every number after 3 including 8 which is
then you always put 10 x whatever number you are doing but right now it is 3.8
and the answer is
10 x 3.8^7
Answer:
10 times larger
Step-by-step explanation:
I used my brain plus I learned it in 5th grade
Answer:
b
Step-by-step explanation:
Using an exponential function, it is found that the mass of the radioactive sample at the beginning of the 13th day of the experiment was of 169.1 mg.
<h3>What is an exponential function?</h3>
A decaying exponential function is modeled by:

In which:
- A(0) is the initial value.
- r is the decay rate, as a decimal.
At the beginning of the first day of the experiment the mass of the substance was 500 grams and mass was decreasing by 8% per day, hence A(0) = 500, r = 0.08, and the equation is given by:



At the 13th day, the mass is given by:

More can be learned about exponential functions at brainly.com/question/25537936