Answer: 6,77,040 different random samples of four accounts are possible.
Step-by-step explanation:
We have to calculate the different random samples of four accounts are possible from the population of 65 bank accounts.
we are using combination formula for calculating various combination of four accounts:
=
Where,
n - total population of bank accounts
r - random samples drawn from the population
=
= 
= 
= 
= 6,77,040 different random samples of four accounts are possible.
Answer:
4 packages of gum in 8 weeks
Step-by-step explanation:
1/2 each week
1/2 x 8 = 4
The factored form of an equation is done by rewriting the equation in simpler forms.
The completely factored form of
is 
The expression is given as:

Factor out x from the expression, 

Express 64 as 8^2

Express the expression as a difference of two squares

Hence, the completely factored form of
is 
Read more about factorization at:
brainly.com/question/3024511
Answer:
21b+21
Step-by-step explanation:
1. simply, combine like terms
3b t 18b +21
add 3b and 18b
it gives u 21b +21