Abusiness with two locations buys seven large delivery trucks and five small delivery trucks. location a receives three large trucks and two small trucks for a total cost of $270,000. location b receives four large trucks and three small trucks for a total cost of $375,000. what is the cost of each type of truck?

d

step-by-step explanation:

the solution is in the picture

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.

well, because the $0.25 is an added cost depending on how many minutes, the answer would be y = 30 + 0.25x.