Answer:
see below
Step-by-step explanation:
<u>are the rational numbers a subset of all real numbers?</u>
yes of course
by definition the real numbers is the union of the rational numbers and the irrational numbers
so we can say that the rational numbers are a subset
and every rational number is part of the real number
<u>are the rational numbers a subset of the irrational numbers?</u>
No
the rationals numbers are all those numbers that you can write as p/q with q different of 0, and the irrationals numbers are those that you cannot write as a fraction
so as you can see those are two completely different types of number, to be a subset every rational number must be in the irrationals , and by the definition we know it can't happen
Answer:
$0.25/1oz
Step-by-step explanation:
$4.00 / 16oz = $0.25 per ounce
The graph of the data set will help you to understand if the data is displayed in the form of an exponential model. Example: if the data (when graphed) is similar in shape and growth to that of the graph of f(x)=e^x, then it could be deemed helpful.
Every year, the price of the smartphone is the 
of the price of the previous year (since we lose the 
, we remain with the ).
Since can be written as 
, the price after one year will be
After two years, the price is the of the price after one year:
And so on: after three years we have
So, the answer is somewhere between three and four years.
