We want to multiply

by

.
The numbers are written in scientific notation. So we expect the answer also to be in scientific notation.
the multiplication of the 10's, using the exponents rule is :

the multiplication of the other 2 numbers is:

(we write the number so that it has only one digit to the left of the decimal point).
Thus,

Answer:
Answer: 0.0228
Step-by-step explanation:
Given : The mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.
Let X be the random variable that represents the finish times for this event.
z score : 

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228
Answer:
vebehgegevevvegeg
Step-by-step explanation:
how's your day
Answer:
<h2>

</h2>
Step-by-step explanation:
32base x means 
Similarly, 32base x+51base y equals to 
and 23base x +42 base y means 
As per the given condition, 
Putting,
in
, we get


Answer:
A
Step-by-step explanation:
process of elimination... :D