Z=110 degrees
A straight line is equal to 180 degrees. You determine the bottom to angles of the triangles first by subtracting the angle degrees by 180.
180-120=60
180-130=50
So now you have the bottom two angles of the triangle. All triangles add up to 180. So just add 50 and 60 together then subtract the answer from 180 to get the missing angle.
50+60=110
180-110=70
Now to find angle Z all you have to do is subtract 70 from 180.
180-70=110
Hope this helped!
The probability is 3/16.
The probability that she catches the bus on one of the days is 3/4; the probability she does not on the other day is 1/4. Together we have
3/4(1/4) = 3/16
If the polygon or the figures are similar then it is
known that the ratios of their corresponding sides and angles are proportional.
In this item we can derive an equation that is,
<span>
AC/AE = AD/AB</span>
Substituting the known values,
<span>
4/7 = 10/AB</span>
<span>AB from the equation is equal to 70/4 or equal to 17 ½. </span>
Answer: A. Mean of sampling means 
Standard deviation of sampling means =
B. The probability that your sample has mean less than 165 is 0.1492 .
Given : The distribution of blood cholesterol level in the
population of young men aged 20 to 34 years is close to normal with
mean 
Mg/dl and standard deviation 
mg/dl.
Sample size : n= 150
Let 
sample mean values.
A. The mean and the standard deviation of the distribution of the sampling means would be :
Mean of sampling means =
Standard deviation of sampling means = 
The probability that your sample has mean less than 165 would be
Hence , the probability that your sample has mean less than 165 is 0.1492 .
