Answer:
2.25
Step-by-step explanation:
divide
Answer:
60 students
Step-by-step explanation:
The confidence interval of a proportion is given by:

Where 'p' is the proportion of students who responded 'yes', 'z' is the z-score for a 95% confidence interval (which is known to be 1.960), and 'n' is the number of students in the sample.
If the confidence interval is from 0.584 to 0.816, then:

60 students were in the sample.
Answer: C
Step-by-step explanation:
We know that
, and thus by the exterior angle theorem,

Thus, 
Answer=0.5 hours
0.5 1
_____ =_____
0.25hr x hr
cross multiply
0.5x=0.25
divide both sides by 0.5
x=0.5 hr
It will take 0.5 hours to paint one wall
Answer:
Hello, The answer is C.
Step-by-step explanation:
HOPE THIS HELPS :)