Apair of parallel lines is cut by a transversal:

a pair of parallel lines cut by a transversal is shown. the inside bottom right angle is labeled 80 degrees. the alternate interior angle is cut by a ray and is labeled as x on one side and 15 degrees on the other.

what is the measure of angle x?
60 degrees
65 degrees
70 degrees
80 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.

ans789

step-by-step explanation: