1 Your work shift starts at 6:30 AM. It takes you 0:20 to get ready, 0:10 to
travel, and you want to arrive 0:05 early. What time should you wake up?*

5:55 AM

Step-by-step explanation:

20 + 10 + 5 = 35 mins

6:30 - 35 = 5:55 (I know this isn't the correct way to subtract from time but it's the quickest and easiest. </3)

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.