Answer:
A. 5.4
Step-by-step explanation:
I think... I haven't done this sort of question in a while
Answer:
17
Step-by-step explanation:
Do the exponent first, then subratct it to 81
The team gained a total of 3 yards. That is because they first gained 8 (0 + 8), then lost 3 (8 - 3).
Using an exponential function, it is found that it takes 18.6 days for 80% of the material to decay.
The amount of a substance after t days is modeled by:

In which:
- k is the decay rate, as a decimal.
- A(0) is the initial amount.
The half-life is of 8 days, hence
, and this is used to find k.







Hence:

The time it takes for 80% of the material to decay it t for which
, hence:






It takes 18.6 days for 80% of the material to decay.
To learn more about exponential functions, you can take a look at brainly.com/question/24906920
Answer:
0.75 = 375/100
Step-by-step explanation:
375/100 = 3.75 and there is no 3 as the whole number.