Answer : The correct answer is, [tex]2.63\times 10^{11}[/tex]
Step-by-step explanation :
Scientific notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power. The numerical digit lies between 0.1.... to 9.9.....
For example :
5000 is written as [tex]5.0\times 10^3[/tex]
889.9 is written as [tex]8.899\times 10^{-2}[/tex]
In this examples, 5000 and 889.9 are written in the standard notation and [tex]5.0\times 10^3[/tex] and [tex]8.899\times 10^{-2}[/tex] are written in the scientific notation.
As we are given the following conversions:
[tex]1mL=5\times 10^6RBC[/tex]
[tex]1\text{ Pint}=437mL[/tex]
Now we have to calculate the number of RBC present in a pint of blood.
As, [tex]1mL=5\times 10^6RBC[/tex]
and, [tex]1\text{ Pint}=437mL[/tex]
So, [tex]437mL=\frac{437mL}{1mL}\times 5\times 10^6RBC=2365\times 10^6RBC=2.4\times 10^9RBC[/tex]
Hence, the correct answer is, [tex]2.4\times 10^9RBC[/tex]
