-2 (t+2) +5 t = 6 t + 11
2 answers:
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Answer:
1,404,000 unique passwords are possible.
Step-by-step explanation:
The order in which the letters and the digits are is important(AB is a different password than BA), which means that the permutations formula is used to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
In this question:
2 digits from a set of 10(there are 10 possible digits, 0-9).
3 characters from a set of 26. So
1,404,000 unique passwords are possible.
Answer:
If we multiply by cross we got:
We can divide both sides of the last equation by and we got:
And if we apply arcsin in both sides we got:
And the best solution would be:
C) pi/2
Step-by-step explanation:
For this case we want to solve the following equation:
And we know that by definition
And replacing we got:
If we multiply by cross we got:
We can divide both sides of the last equation by and we got:
And if we apply arcsin in both sides we got:
And the best solution would be:
C) pi/2