5.1 times 10 to the sixth power
B is the answer ok have a good day
Answer: Stratified Random sampling
Step-by-step explanation:
Stratified Random sampling simply refers to a sampling technique or strategy whereby random selection of observation of samples are made from a population or larger sample by first arranging or splitting the population of interest into smaller groups or separate catagory based on a certain criteria or criterias. Random samples are then taken from each of the groups also called strata. This technique is aimed at ensuring a more even distribution of samples across the various available groups within a population of interest. In the scenario above the stratas or groups are ; Sophomores, Junior, Senior and freshmen.
Answer: It's A , I know it is, I had the same one
Step-by-step explanation:
K, so since directix is below focus, it opens up (2<4)
and directix is y=something so equation is (x-h)^2+4p(y-k) where (h,k) is vertex and p is distance from focus to vertex. if it opens down, p<0, if it opens up, p>0
and the vertex is in the middle of the focus and directix
so
distance bewten (-2,4) and y=2 is 2 units
2/2=1, so 1 unit down from focus
vertex is in the middle so it is at (-2,3)
also, opens up so p=1
vertex (-2,3)
p=1
(x-(-2))^2=4(1)(y-3)
(x+2)^2=4(y-3) is an equation
