Austin has completed 22 deliveries so far this week. He needs to make 40 deliveries for the week. What percentage of his deliveries has austin completed?

55%.

Step-by-step explanation:

We have been given that Austin has completed 22 deliveries so far this week. He needs to make 40 deliveries for the week. We are asked to find the percentage of deliveries completed by Austin.

To find the percentage of deliveries completed by Austin, we need to calculate 22 is what percentage of 40 as:

Therefore, Austin has completed 55% of his deliveries.

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.