The cost for a bussiness to make greeting cards can be divided into one-time costs (e. g., a printing machine) and repeated costs(e. g., ink and paper) suppose the total cost to make 300 cards is $800 and the total cost to make 550 cards is $1.300 what is the total cost to make 1,000 cards? round your answer to the nearest dollar
a $2,000
b $2,200
c $2,364
d $2,667

europa2433

europa2433

step-by-step explanation:

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.