Answer:
44m
Step-by-step explanation:
area of a trapezoid = (a+b)* h/2
since the distance between two parallel sides is 15, that would be your height
plug everything in and you get:
480 = (20 + b) *15/2
b = 44
If u subtract 6-9 u would get a -3 because the 9 is bigger than the 6 so thats how you get a -3.
Answer:
ok
Step-by-step explanation:
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Answer:
There is an 8.22% probability that a randomly selected person has a birthday in November.
Step-by-step explanation:
The theoretical method to find the probability is the division of the number of desired outcomes by the number of total outcomes.
A randomly selected person has a birthday in November
There are 365 days in a year, so the number of total outcomes is 365.
There are 30 days in november, so the number of desired outcomes is 30.
So the probability is

There is an 8.22% probability that a randomly selected person has a birthday in November.
I would say that they didnt because if you plug anythin in that equation it wont be a solution......i think thats what it meant