Answer:
D.
Step-by-step explanation:
1) according to the definition of parabola d(focus)=f(directrix),
2) then


3) after evoluation the equation:
(y+4)²=-4x+8 or (y+4)²= -4(x-2);
4) correct answer is D.
Answer:
The answer is C. The data is skewed right because the time it takes employees to get to work tails off to the right.
Step-by-step explanation
Answer: on the screenshot
Step-by-step explanation: linear function should go down or up(straight line)
Answer:

Step-by-step explanation:
We are given the following in the question:
Sample size, n = 67
Variance = 3.85
We have to find 80% confidence interval for the population variance of the weights.
Degree of freedom = 67 - 1 = 66
Level of significance = 0.2
Chi square critical value for lower tail =

Chi square critical value for upper tail =

80% confidence interval:

Putting values, we get,

Thus, (3.13,4.91) is the required 80% confidence interval for the population variance of the weights.
Consonants are letters that are not vowels a e I o u sometimes y
The first 5 consonants are
a.B.C.D.e.F.G
B
C
D
F and
G