Can anyone help me with 2d?
giving brainliest !

  GF = 25.2

Step-by-step explanation:

GF/BC = (AD-FE)/AD

GF = BC(AD-FE)/AD = 36(20-6)/20

GF = 25.2

__

The ratio of GF to BC is the ratio of DE to DC. The ratio of FE to AD is the ratio of CE to CD. That is ...

  GF/BC = (CD-CE)/CD = 1 - FE/AD = (AD -FE)/AD . . . . . as above

14

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.