Answer:
d.a cluster sampling
Step-by-step explanation:
This plan exemplifies Cluster sampling. It is a sampling method where populations are placed into different separate groups like here into freshman, sophomore, junior, and senior classes. A random sample of these groups is then selected as here thirty students selected from each group to represent a specific population.<u> It is usually used in that type of research when there is no possible way to find information about a population as a whole.</u>
Y intercept occurs when x = o so it is -2(0-3) + 4 = -2
x intercepts:-
-2(x - 3)^2 + 4 = 0
(x - 3)^2 = -4/-2 = 2
x - 3 = +/- sqrt2
x = 3 + sqrt2 and 3- sqrt2
Answer:
Hello :
the slope of the line when equation y = x +3 is : 1
the equation in slope-intercept is : y - (-1) = 1 (x -0)
y + 1 = x
Answer:
45
Step-by-step explanation:
the area of the carpet that is blue is 45
Answer:
3(4n+2)is equivalent to6(2n+1)
