Please help the questions are in the attachments

answer:

1. A, and B

2. B or >

3. C or =

4. A or 0, -5, -8, -15

5. B or -47

6. A or -15

7. C or 15

8. C or 15

9. A or -112

10. B or 84

11. C or -12

12. B or -3

13. D or -9

14. C or -12

15. A or -32

16. C or 28 yards

step-by-step explanation:

goog be able to you with that maybe

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.