Acomputer company uses 6 characters to create their serial number identification for products. the first 3 characters are any single digit number but no character can repeat in those first 3 characters. the next two characters must be a letter and those two letters cannot be the same. the last space can be any number or letter without any restriction. how many unique serial numbers are possible?
a. 11,232,000
b. 24,336,000
c. 15,912,000
d. 16,848,000

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.

step-by-step explanation:

idk

step-by-step explanation:

y -5 = (-1/4)(x + 8)

step-by-step explanation: