Answer:(x+2)(x−2)
Step-by-step explanation:Since both terms are perfect squares, factor using the difference of squares formula
Answer:
Stratified sampling
Step-by-step explanation:
The is a type of sampling in which the population of interest is divided into subpopulations and then each subpopulation is randomly sampled.
In this case study, instead of just doing a random sampling of all students, the research divided the population of all students into subpopulations which includes freshmen, sophomores, juniors and seniors and then she makes a random sampling of each of these subpopulations.
Answer:
a pool since it has a large volume
Step-by-step explanation:
Answer:
y=5x-7
-3x-2y=-12
Step-by-step explanation:
-3x-2(5x-7)=-12
-3x-10x+14=-12
-13x+14=-12
-13x=-26
y=5x-7+5x2-7=10-7=3
A and B are the correct options
