This is the concept of arithmetic sequence. To get the recursive formula that models the total amount Jobie has in her account we use the arithmetic formula given by:
an=a+(n-1)d
where:
an=nth term
a=first term
n=number of terms
d=arithmetic difference
in our case
a=$325
d=$10
the initial amount was:
a0=325
the amount in the second month will be:
a1=325+10
the amount in the thrid month will be:
a2=a1+10
after n months the we shall have:
an=a_(n-1)+10
hence the recursive formula will be:
an=a_(n-1)+10
where:
n=1,2,3,4,...,
a0=325
What is the square root of 45?
Answer: 3√5
There are 2 factors. 1 and 7 are the factors.
