Answer:
Step-by-step explanation:
Given;

a)
substitute 
b)
Apply partial fraction in (a), we get;

where C is an arbitrary constant
Here, regrouping is basically carrying.
64+43 shown vertically would be:
64
+43
-------
107
4+3 is 7, so seven is in the ones place, but that's not the point.
60+40 is 100, so you regroup by carrying the one to the hundreds place.
Hope I helped!
Answer:
I believe it is b
Step-by-step explanation:
Answer:
Number of random samples = 962598
Step-by-step explanation:
A random sample represents the responses for a certain survey of a part of the population.
A sample size is the part of the population being surveyed.
For a population
the number of different random samples that can be chosen for a sample size
can be calculated as =
This can be calculated as :
Given:
Population size = 43
Sample size = 5
Number of random samples = 
⇒
⇒
⇒
[Canceling out the common terms]
⇒
(Answer)