math
posted by janae .
5670 is invested at a anual intrest rate 3.5% for one year. if the intrest is compounded semiannually then the polynomial P(1+r/2)^2 represent the value of the investment after one year

Substitute 5670 for P.
and .035 for r.
add 1 to .035/2
Square that answer and then multipl by 5670