Answer: 31/41
Explanation: You multiply the numerator and denominator across such as (2 and 8)= 16 and (3 and 5)= 15.
Once that done, you just calculate it together to get
=31/40
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:
Step-by-step explanation:
So, according to the law of Sines, we have
In our case, we have S and R, so...
And we want to isolate R...
the angle of R is then 75.90 degrees.
Answer:
The Y-intercept changes .
Step-by-step explanation:
Answer:
Inverse.
Step-by-step explanation:
Inverse trigonometric functions.
e. g. tan-1 x means 'the angle whose tangent is x'.
They are also called arcsin, arccos and arctan.
