Answer:
EC = 15
Step-by-step explanation:
It appears that D, E, and F are the midpoints of their respective line segments (chords of the circumcircle). Hence EB = EC = 15.
Answer:
12h + 6k
Step-by-step explanation:
3 times 4h = 12h
3 times 2k = 6k
Answer: 0.0971
Step-by-step explanation:
Given : Sample size : 
The percent of people are afraid of flying 
Thus the proportion of people are afraid of flying 
We know that the formula to find the standard deviation of the distribution of sample proportions is given by :-

Hence, the standard deviation of the distribution of sample proportions = 0.0971
Let the what be represented with x.
So what times what = 252
x*x = 252
x² = 252 Take the square root of both sides
√x² = √252 Use your calculator
x = 15.875
The what is 15.875