Answer:
This is cluster sampling.
Step-by-step explanation:
American Airlines randomly selects 110 flights during a certain week and surveys all passengers on the flights.
This is a type of cluster sampling.
This type of sampling is done by dividing the population into different groups and a simple random sample of clusters is selected from the population.
Y=6x is bigger because they have the same variables, but the known numbers in the first equation are doubled
The value of x is and
Step-by-step explanation:
The equation is
Subtracting by on both sides,
Taking LCM,
Multiplying by 3x on both sides,
Dividing by (-) on both sides,
Using quadratic formula, we can solve for x.
Taking out common term 2, we get,
Thus, the value of x is and
Answer:
Step-by-step explanation:
8 3/5 is already in simplest form. You could write this mixed number as an improper fraction:
43/5
or as a mixed decimal number:
8.6
Answer: -108/+18 = -6
Step-by-step explanation: Multiply 18 by -6 for B then it simplifies out.