Answer:
4π
Step-by-step explanation:
the radius is 4/2=2 yards
circle's area is π*2^2=4π
Answer: D) all American school teachers.
Step-by-step explanation:
In statistics, A population is a very large set of individuals or values that belong to a specified group established by researcher.
A sample is a subset of population that represents the entire population in research.
Given : We want to know the opinions of American school teachers about establishing a national test for high school graduation.
Clearly , by the above definition
Population = all American school teachers.
You obtain a list of the members of the National Education Association and mail a questionnaire to 2500 teachers chosen at random from this list.
sample = 2500 teachers chosen at random from this list.
Hence, the intended population is all American school teachers.
Thus , the correct answer is D) all American school teachers.
Answer:
70%
Step-by-step explanation:
there is 10 and 7 of them are filled which is 7/10 since we are dealing with percentages we need the bottom to be 100 so 70/100 or 70%
- Gage Millar, Algebra 2 tutor
Answer: 0.529
Step-by-step explanation: 0.529/2.3=0.23
It would be 27/20 or, simplified, 1 and 7/20