Answer:
3x^2 -7x +2
Step-by-step explanation:
(15x^2 -35x +10)÷5
15/5 x^2 -35/5 x +10/5
3x^2 -7x +2
Answer:
a) cluster sampling
Step-by-step explanation:
In cluster sampling method, each member of a population is assigned to one and only one group.This means clusters are formed through probability method usually a simple random sampling.The participants in the clusters are the only one to be surveyed.
In this example, simple random sampling is used to identify 12 home rooms(cluster) where a group of 20 students (participants) in each room is given the survey.
Answer:
here you go. hope this helps
Circumference/Diameter = pi = 3.14
C/D = pi = 3.14
For this case we have, by definition:
So, we have:
On the other hand we have that by definition:
Thus, the expression can be written as:
So, we have:
Answer:
