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It depends on what that number is.
Answer:
x^2, 3^2, 3, x^2 +9
Step-by-step explanation:
if not swy but i think its that
Answer:
0.012
Step-by-step explanation:
The probability of more than 7 customers arriving within a minute is obtained by taking the probability at X equal to 0, 1, 2, 3, 4, 5, 6, and 7 then subtracting from the total probability. It can be expected about 1.2% of times that more than 7 customers arriving within a minute.
Answer:
2/9
Step-by-step explanation:
We are given Susan (S) is 3 times as old as Paul (P) so S=3P.
And Paul (P) is 3/2 times as old as Mary (M) so P=(3/2)M.
What fraction of Susan's age is Mary?
So if S=3P and P=(3/2)M, then by substitution we have
Multiply both sides by the reciprocal of 9/2 resulting in:
This says Mary is two-ninths the age of Susan.