felix took out an unsubsidized student loan of $40,000 at a 3.6% apr, compounded monthly, to pay for his last six semesters of college. if he will begin paying off the loan in 33 months with monthly payments lasting for 20 years, what will be the amount of his monthly payment?

a. $257.04
b. $258.36
c. $232.85
d. $234.04

The correct option is B.

Step-by-step explanation:

The formula for amount after compound interest is

Where P is principal, r is rate of interest, n is number of times interest compounded in a period, t is number of years.

It is given that Felix took out an unsubsidized student loan of $40,000 at a 3.6% APR, compounded monthly. The amount after 33 month is

The amount after 33 month is $44156.1074. So, the new principle amount is $44156.1074.

The monthly payment  of $44156.1074 for 20 years is

Where, P.V. is present value, r is rate of interest and n is number of times interest compounded.

Therefore the correct option is B.

the answer is b.)

< 1=< 2

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.