Help me with this question pleaseee

< 1 = 26 degrees

< 2 = 154 degrees

< 3 = 26 degrees

< 4 = 26 degrees

< 5 = 154 degrees

< 6 = 154 degrees

< 7 = 26 degrees

Step-by-step explanation:

Because of angles opposed by the vertex, <2 = 154 degrees

Because of corresponding angles between parallel lines, <5 = <6 = <2 = 154 degrees.

Because of supplementary angles,

< 1 = < 3 = < 4 = < 7 = 180 - 154 = 26 degrees

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.