Answer:
or 50.4%
Step-by-step explanation:
The <em>probabilities</em> constitute a branch of mathematics that deals with measuring or quantitatively determining the possibility that an event or experiment produces a certain result. The probability is based on the study of combinatorics and is the necessary foundation of statistics.
A <em>permutation</em> is an ordered arrangement of objects in a group, without repetitions.
A 4-digit PIN is selected. What is the probability that there are no repeated digits?
First, there are only 10 possible values for each digit of the PIN (0, 1, 2, 3, 4, 5, 6, 7, 8, 9). The total possibles 4 PINs are 
There's no repeated numbers and all the four numbers have to be different, which means we have to select 4 numbers out of 10 numbers. Using the permutation equation 

So, the probability that there are no repeated digits is:
P(A)=favorable cases/possible cases
or 50.4%
.
Answer:theyre the exact same number, so it cant be told
Step-by-step explanation:
Answer: 
Step-by-step explanation:



Answer: The slope of the line is 
Step-by-step explanation:
The slope of a line can be calculated with the following formula:

Then, given the points
and
, you can identify that:

Knowing these values you can substitute them into the formula for calculate the slope:

Finally, evaluating, you get that the slope of that line is:
