Ulrich and Jacinta work for a cleaning business to earn college tuition money. Jacinta can clean a client's apartment in 1 hour 20 minutes if she works alone. Ulrich and Jacinta can
clean the apartment in 48 minutes if they work together. How long (in minutes) does it
take Ulrich to clean the apartment if he works alone? Assume both people work at steady
rates and their rates are not affected by either working alone or working togeth

what?

step-by-step explanation:

what do you need with. i love quadrants. can you tell me ?

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.

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry