Janice needs twelve and nine over ten. ft of ribbon for her art project. She has a piece of ribbon that is six and one over five ft and another piece of ribbon that is three and three over five ft long. How many more feet of ribbon does she need for her art project?

The answer is 204 ft I think! Let me know if its wrong!

Hope you do Great!

Step-by-step explanation:

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.