Rosalie has a rectangular 3.5 feet by 5.5 feet bedspread. She wants to sew a fringe around the edge of the bedspread.
What length of fringe does Rosalie need to purchase?
18
feet
Rosalie gets a new bedspread that is 1.5 feet longer.
What length of fringe does Rosalie need for the longer bedspread?
feet

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.

step-by-step explanation: 4 cause 2+2=4

17

step-by-step explanation:

51/3=17

thus 17 is your answer.