8x + 5.5y = 78.5 would be ur equation for this situation...where x is the number of children's tickets she bought and y is the number of adult tickets she bought
Answer:
Step-by-step explanation:
Using central Limit Theorem (CLT), The sum of 100 random variables;
is approximately normally distributed with
Y ~ N (100 × ) = N ( 50, )
The approximate probability that it will take this child over 55 seconds to complete spinning can be determined as follows;
N ( 50, )
Using Chebyshev's inequality:
Let assume that X has a symmetric distribution:
Then:
where: ()
Answer: 5/7
Step-by-step explanation:please see attachment for explanation.
Answer:
8
Step-by-step explanation:
AB=DC
BC=AD
BA=CD
CB=DA
Answer:
3 and 12
Step-by-step explanation: