Solving the equation
1 answer:
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The number of permutations of the 25 letters taken 2 at a time (with repetitions) is:
The number of permutations of the 9 digits taken 4 at a time (with repetitions) is:
Each permutation of letters can be taken with each permutation of digits, therefore the total number of possible passwords is:
The number of permutations of the 9 digits taken 4 at a time (with repetitions) is:
Each permutation of letters can be taken with each permutation of digits, therefore the total number of possible passwords is:
Answer:
y =
Step-by-step explanation:
the graph shows the vertex is (2,0); which means it is
y = which show 2 units to the right on the x-axis and staying at y=0