Answer ≈ 4 and a half billion
If we assume your letters range from A to Z and your digits from 0 to 9, you have 26 possibilities per letter and 10 per digit. This gives you 26^4*10^4 which is roughly 4 billion and a half.
Answer :
59+55+854+456+456+7894=9,774
Answer:
12√2
Step-by-step explanation:
24 = x√2
24/√2 = x
12√2 = x
Answer:
There are 177,100 ways.
Step-by-step explanation:
Since there is no regard to order, we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.

In this question:
6 keyboards from a set of 25. So

There are 177,100 ways.