Answer:
27,600
Step-by-step explanation:
We use the following formula:-
Number of permutations of r from n
= nPr
= n! / (n-r)!
I am assuming you don't allow repeated letters in the 4 letter codes.
Take S as the first letter. Then we have 3 letters extra out of 25 letters.
Using the above formula the possible ways of doing this is
25! / (25 - 3)!
25! / 22!
= 25*24*23
= 13800.
The same number is obtained if the first letter is a T.
So the answer is 2*13800
= 27,600
Answer:
Step-by-step explanation:
The points that are collinear are points E,H and K
<h3>How to determine the points that are collinear?</h3>
Two or more points are said to be collinear, if the points are on the same line
From the figure, we have the following points
J, E, H, K, L and I
Of the 6 points, the points E, H and K are on the same line
i.e. line EK
Hence, the points that are collinear are points E,H and K
Read more about collinear points at:
brainly.com/question/18559402
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We don’t know which one is the hypotenuse. So if we were to plug it into the Pythagorean theorem, we wouldn’t know where to put it. Two possible answers:
8 squared (copy pasting the symbol here is an inconvenience) + b squared = 10 squared which is 6m after solving.
Or you could say 8 squared + 10 squared = c squared. Solving for C would get us 12.8m as our second possibility.