Susan took out a personal loan for $3,500 at an interest rate of 13% compounded monthly. she made arrangements to pay the loan off in 3 years. what will her monthly payment be? a. $99.34 b. $105.32 c. $117.93 d. $156.60

This is a present value of an ordinary annuity question.

It is present value because you have a present value - the future value will be 0.

I assume the interest rate is 13% per annum.

A=3500

i=0.13/12=0.01083 repeater

1+i=1.01083 repeater

n=3*12=36

You have to find R

formula is

A = R x (1- (1+i)^-n)/ i

Just substitute the given to this formula and you'll get the answer.

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.