Answer: a) 1977060966, b) 146581344.
Step-by-step explanation:
Since we have given that
There are 10 numbers,
There are 26 lower case letters,
There are 26 upper case letters,
Since the first 3 characters have to be digits and next 6 can be upper or lower.
So, a) repetitions are allowed:

b) repetitions are not allowed:

Hence, a) 1977060966, b) 146581344.
Answer:
79%
Step-by-step explanation:
Answer:
Slope=5/7
Step-by-step explanation:
Slope=Δy/Δx=(3-(-2)) /(9-2)=5/7
Answer is option C 19.64 sq units
Answer:
The length is 5
The width is 11
Step-by-step explanation:
11 is more than two times bigger than 5
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